40784657796 has 18 divisors (see below), whose sum is σ = 103094551742. Its totient is φ = 13594885920.

The previous prime is 40784657783. The next prime is 40784657801. The reversal of 40784657796 is 69775648704.

40784657796 is a `hidden beast` number, since 407 + 84 + 65 + 7 + 7 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37419033600 + 3365624196 = 193440^2 + 58014^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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, 566453545 + ... + 566453616.

Almost surely, 2^40784657796 is an apocalyptic number.

It is an amenable number.

40784657796 is an abundant number, since it is smaller than the sum of its proper divisors (62309893946).

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

40784657796 is a wasteful number, since it uses less digits than its factorization.

40784657796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132907171 (or 1132907166 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 40784657796 in words is "forty billion, seven hundred eighty-four million, six hundred fifty-seven thousand, seven hundred ninety-six".