40888136784 has 40 divisors (see below), whose sum is σ = 115230205152. Its totient is φ = 12390344320.

The previous prime is 40888136719. The next prime is 40888136803. The reversal of 40888136784 is 48763188804.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38719299 + ... + 38720354.

Almost surely, 2^40888136784 is an apocalyptic number.

40888136784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40888136784 is an abundant number, since it is smaller than the sum of its proper divisors (74342068368).

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

40888136784 is a wasteful number, since it uses less digits than its factorization.

40888136784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77439675 (or 77439669 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 57.

The spelling of 40888136784 in words is "forty billion, eight hundred eighty-eight million, one hundred thirty-six thousand, seven hundred eighty-four".