11970105728 has 48 divisors (see below), whose sum is σ = 27740047500. Its totient is φ = 5130042624.

The previous prime is 11970105713. The next prime is 11970105731. The reversal of 11970105728 is 82750107911.

It is a super-2 number, since 2×11970105728² (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 5 ways as a sum of consecutive naturals, for example, 947978 + ... + 960521.

Almost surely, 2^11970105728 is an apocalyptic number.

It is an amenable number.

11970105728 is an abundant number, since it is smaller than the sum of its proper divisors (15769941772).

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

11970105728 is an equidigital number, since it uses as much as digits as its factorization.

11970105728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908527 (or 1908508 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 41.

The spelling of 11970105728 in words is "eleven billion, nine hundred seventy million, one hundred five thousand, seven hundred twenty-eight".