11774935640 has 32 divisors (see below), whose sum is σ = 28531576080. Its totient is φ = 4347668352.

The previous prime is 11774935631. The next prime is 11774935651. The reversal of 11774935640 is 4653947711.

It is a super-2 number, since 2×11774935640² (a number of 21 digits) contains 22 as substring.

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, 11321534 + ... + 11322573.

Almost surely, 2^11774935640 is an apocalyptic number.

11774935640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11774935640 is an abundant number, since it is smaller than the sum of its proper divisors (16756640440).

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

11774935640 is a wasteful number, since it uses less digits than its factorization.

11774935640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22644131 (or 22644127 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 11774935640 in words is "eleven billion, seven hundred seventy-four million, nine hundred thirty-five thousand, six hundred forty".