42149915792 has 10 divisors (see below), whose sum is σ = 81665461878. Its totient is φ = 21074957888.

The previous prime is 42149915791. The next prime is 42149915911. The reversal of 42149915792 is 29751994124.

It can be written as a sum of positive squares in only one way, i.e., 39774718096 + 2375197696 = 199436^2 + 48736^2 .

It is not an unprimeable number, because it can be changed into a prime (42149915791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317184853 + ... + 1317184884.

Almost surely, 2^42149915792 is an apocalyptic number.

It is an amenable number.

42149915792 is a deficient number, since it is larger than the sum of its proper divisors (39515546086).

42149915792 is a wasteful number, since it uses less digits than its factorization.

42149915792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634369745 (or 2634369739 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The spelling of 42149915792 in words is "forty-two billion, one hundred forty-nine million, nine hundred fifteen thousand, seven hundred ninety-two".