126404931938 has 12 divisors (see below), whose sum is σ = 198209625558. Its totient is φ = 60454532160.

The previous prime is 126404931931. The next prime is 126404931943. The reversal of 126404931938 is 839139404621.

It can be written as a sum of positive squares in only one way, i.e., 109404162169 + 17000769769 = 330763^2 + 130387^2 .

It is not an unprimeable number, because it can be changed into a prime (126404931931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59736623 + ... + 59738738.

Almost surely, 2^126404931938 is an apocalyptic number.

126404931938 is a deficient number, since it is larger than the sum of its proper divisors (71804693620).

126404931938 is a wasteful number, since it uses less digits than its factorization.

126404931938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119475409 (or 119475386 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 126404931938 in words is "one hundred twenty-six billion, four hundred four million, nine hundred thirty-one thousand, nine hundred thirty-eight".