11797759540 has 24 divisors (see below), whose sum is σ = 28314623232. Its totient is φ = 4044946080.

The previous prime is 11797759531. The next prime is 11797759583. The reversal of 11797759540 is 4595779711.

It is a super-2 number, since 2×11797759540² (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, 42134716 + ... + 42134995.

It is an arithmetic number, because the mean of its divisors is an integer number (1179775968).

Almost surely, 2^11797759540 is an apocalyptic number.

11797759540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11797759540 is an abundant number, since it is smaller than the sum of its proper divisors (16516863692).

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

11797759540 is a wasteful number, since it uses less digits than its factorization.

11797759540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84269727 (or 84269725 counting only the distinct ones).

The product of its (nonzero) digits is 2778300, while the sum is 55.

The spelling of 11797759540 in words is "eleven billion, seven hundred ninety-seven million, seven hundred fifty-nine thousand, five hundred forty".