10811139504 has 40 divisors (see below), whose sum is σ = 30467758272. Its totient is φ = 3276102720.

The previous prime is 10811139503. The next prime is 10811139523. The reversal of 10811139504 is 40593111801.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (10811139503) 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, 10237294 + ... + 10238349.

Almost surely, 2^10811139504 is an apocalyptic number.

It is an amenable number.

10811139504 is an abundant number, since it is smaller than the sum of its proper divisors (19656618768).

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

10811139504 is a wasteful number, since it uses less digits than its factorization.

10811139504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20475665 (or 20475659 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

The spelling of 10811139504 in words is "ten billion, eight hundred eleven million, one hundred thirty-nine thousand, five hundred four".