2643775250072 has 96 divisors (see below), whose sum is σ = 5516093444400. Its totient is φ = 1186919965440.

The previous prime is 2643775250057. The next prime is 2643775250087. The reversal of 2643775250072 is 2700525773462.

2643775250072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2643775250057) and next prime (2643775250087).

It is a super-2 number, since 2×2643775250072² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2643775250072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33407783 + ... + 33486825.

Almost surely, 2^{2643775250072} is an apocalyptic number.

2643775250072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643775250072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2758046722200).

2643775250072 is an abundant number, since it is smaller than the sum of its proper divisors (2872318194328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2643775250072 is a wasteful number, since it uses less digits than its factorization.

2643775250072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79497 (or 79482 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 50.

The spelling of 2643775250072 in words is "two trillion, six hundred forty-three billion, seven hundred seventy-five million, two hundred fifty thousand, seventy-two".