11270511728 has 20 divisors (see below), whose sum is σ = 24956133360. Its totient is φ = 4830219264.

The previous prime is 11270511719. The next prime is 11270511737. The reversal of 11270511728 is 82711507211.

It is an interprime number because it is at equal distance from previous prime (11270511719) and next prime (11270511737).

It is a super-2 number, since 2×11270511728² (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 3 ways as a sum of consecutive naturals, for example, 50314673 + ... + 50314896.

It is an arithmetic number, because the mean of its divisors is an integer number (1247806668).

Almost surely, 2^11270511728 is an apocalyptic number.

It is an amenable number.

11270511728 is an abundant number, since it is smaller than the sum of its proper divisors (13685621632).

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

11270511728 is a wasteful number, since it uses less digits than its factorization.

11270511728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100629584 (or 100629578 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 35.

The spelling of 11270511728 in words is "eleven billion, two hundred seventy million, five hundred eleven thousand, seven hundred twenty-eight".