6245891407452 has 96 divisors (see below), whose sum is σ = 15647103763200. Its totient is φ = 1933201492992.

The previous prime is 6245891407451. The next prime is 6245891407489. The reversal of 6245891407452 is 2547041985426.

It is a super-2 number, since 2×6245891407452² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 6245891407392 and 6245891407401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6245891407451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3844438 + ... + 5222210.

It is an arithmetic number, because the mean of its divisors is an integer number (162990664200).

Almost surely, 2^{6245891407452} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6245891407452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7823551881600).

6245891407452 is an abundant number, since it is smaller than the sum of its proper divisors (9401212355748).

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

6245891407452 is a wasteful number, since it uses less digits than its factorization.

6245891407452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378195 (or 1378193 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 6245891407452 in words is "six trillion, two hundred forty-five billion, eight hundred ninety-one million, four hundred seven thousand, four hundred fifty-two".