28110434156 has 24 divisors (see below), whose sum is σ = 56307799296. Its totient is φ = 12028700880.

The previous prime is 28110434153. The next prime is 28110434159. The reversal of 28110434156 is 65143401182.

It is an interprime number because it is at equal distance from previous prime (28110434153) and next prime (28110434159).

It is a super-2 number, since 2×28110434156² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28110434153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757730 + ... + 793961.

It is an arithmetic number, because the mean of its divisors is an integer number (2346158304).

Almost surely, 2^28110434156 is an apocalyptic number.

It is an amenable number.

28110434156 is an abundant number, since it is smaller than the sum of its proper divisors (28197365140).

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

28110434156 is a wasteful number, since it uses less digits than its factorization.

28110434156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552349 (or 1552347 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 28110434156 in words is "twenty-eight billion, one hundred ten million, four hundred thirty-four thousand, one hundred fifty-six".