42392349994 has 4 divisors (see below), whose sum is σ = 63588524994. Its totient is φ = 21196174996.

The previous prime is 42392349983. The next prime is 42392350001. The reversal of 42392349994 is 49994329324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42150143025 + 242206969 = 205305^2 + 15563^2 .

It is a super-2 number, since 2×42392349994² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10598087497 + ... + 10598087500.

Almost surely, 2^42392349994 is an apocalyptic number.

42392349994 is a deficient number, since it is larger than the sum of its proper divisors (21196175000).

42392349994 is a wasteful number, since it uses less digits than its factorization.

42392349994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21196174999.

The product of its digits is 15116544, while the sum is 58.

The spelling of 42392349994 in words is "forty-two billion, three hundred ninety-two million, three hundred forty-nine thousand, nine hundred ninety-four".