40191928902 has 48 divisors (see below), whose sum is σ = 87411280320. Its totient is φ = 13346823600.

The previous prime is 40191928873. The next prime is 40191928919. The reversal of 40191928902 is 20982919104.

It is a super-2 number, since 2×40191928902² (a number of 22 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 23 ways as a sum of consecutive naturals, for example, 6113277 + ... + 6119847.

It is an arithmetic number, because the mean of its divisors is an integer number (1821068340).

Almost surely, 2^40191928902 is an apocalyptic number.

40191928902 is an abundant number, since it is smaller than the sum of its proper divisors (47219351418).

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

40191928902 is a wasteful number, since it uses less digits than its factorization.

40191928902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 40191928902 in words is "forty billion, one hundred ninety-one million, nine hundred twenty-eight thousand, nine hundred two".