2549599944990 has 128 divisors (see below), whose sum is σ = 7021764080640. Its totient is φ = 580386014208.

The previous prime is 2549599944979. The next prime is 2549599945019. The reversal of 2549599944990 is 994499959452.

It is a super-2 number, since 2×2549599944990² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 193923597 + ... + 193936743.

It is an arithmetic number, because the mean of its divisors is an integer number (54857531880).

Almost surely, 2^{2549599944990} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549599944990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510882040320).

2549599944990 is an abundant number, since it is smaller than the sum of its proper divisors (4472164135650).

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

2549599944990 is a wasteful number, since it uses less digits than its factorization.

2549599944990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16866.

The product of its (nonzero) digits is 1700611200, while the sum is 78.

The spelling of 2549599944990 in words is "two trillion, five hundred forty-nine billion, five hundred ninety-nine million, nine hundred forty-four thousand, nine hundred ninety".