17929197942 has 16 divisors (see below), whose sum is σ = 35990717952. Its totient is φ = 5954345640.

The previous prime is 17929197931. The next prime is 17929197961. The reversal of 17929197942 is 24979192971.

It is a super-2 number, since 2×17929197942² (a number of 21 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 7 ways as a sum of consecutive naturals, for example, 5511658 + ... + 5514909.

It is an arithmetic number, because the mean of its divisors is an integer number (2249419872).

Almost surely, 2^17929197942 is an apocalyptic number.

17929197942 is an abundant number, since it is smaller than the sum of its proper divisors (18061520010).

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

17929197942 is a wasteful number, since it uses less digits than its factorization.

17929197942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026843.

The product of its digits is 5143824, while the sum is 60.

The spelling of 17929197942 in words is "seventeen billion, nine hundred twenty-nine million, one hundred ninety-seven thousand, nine hundred forty-two".