11957625440 has 48 divisors (see below), whose sum is σ = 28342025712. Its totient is φ = 4767450624.

The previous prime is 11957625439. The next prime is 11957625469. The reversal of 11957625440 is 4452675911.

It is a junction number, because it is equal to n+sod(n) for n = 11957625391 and 11957625400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72599 + ... + 170838.

It is an arithmetic number, because the mean of its divisors is an integer number (590458869).

Almost surely, 2^11957625440 is an apocalyptic number.

11957625440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11957625440 is an abundant number, since it is smaller than the sum of its proper divisors (16384400272).

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

11957625440 is a wasteful number, since it uses less digits than its factorization.

11957625440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243759 (or 243751 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 11957625440 in words is "eleven billion, nine hundred fifty-seven million, six hundred twenty-five thousand, four hundred forty".