909136472742 has 48 divisors (see below), whose sum is σ = 1973753606448. Its totient is φ = 302436838080.

The previous prime is 909136472723. The next prime is 909136472759. The reversal of 909136472742 is 247274631909.

909136472742 is a `hidden beast` number, since 9 + 0 + 9 + 1 + 364 + 7 + 274 + 2 = 666.

909136472742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 61333692 + ... + 61348512.

It is an arithmetic number, because the mean of its divisors is an integer number (41119866801).

Almost surely, 2^909136472742 is an apocalyptic number.

909136472742 is an abundant number, since it is smaller than the sum of its proper divisors (1064617133706).

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

909136472742 is a wasteful number, since it uses less digits than its factorization.

909136472742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21445 (or 21442 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 909136472742 in words is "nine hundred nine billion, one hundred thirty-six million, four hundred seventy-two thousand, seven hundred forty-two".