40513803768 has 24 divisors (see below), whose sum is σ = 109724885400. Its totient is φ = 13504601232.

The previous prime is 40513803751. The next prime is 40513803779. The reversal of 40513803768 is 86730831504.

40513803768 is a `hidden beast` number, since 40 + 513 + 8 + 0 + 37 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281345788 + ... + 281345931.

It is an arithmetic number, because the mean of its divisors is an integer number (4571870225).

Almost surely, 2^40513803768 is an apocalyptic number.

It is an amenable number.

40513803768 is an abundant number, since it is smaller than the sum of its proper divisors (69211081632).

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

40513803768 is a wasteful number, since it uses less digits than its factorization.

40513803768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562691731 (or 562691724 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 40513803768 in words is "forty billion, five hundred thirteen million, eight hundred three thousand, seven hundred sixty-eight".