670000400738 has 16 divisors (see below), whose sum is σ = 1056351006720. Its totient is φ = 318096029856.

The previous prime is 670000400737. The next prime is 670000400809. The reversal of 670000400738 is 837004000076.

It is a junction number, because it is equal to n+sod(n) for n = 670000400698 and 670000400707.

It is not an unprimeable number, because it can be changed into a prime (670000400737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53151458 + ... + 53164061.

It is an arithmetic number, because the mean of its divisors is an integer number (66021937920).

Almost surely, 2^670000400738 is an apocalyptic number.

670000400738 is a deficient number, since it is larger than the sum of its proper divisors (386350605982).

670000400738 is a wasteful number, since it uses less digits than its factorization.

670000400738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106315681.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 670000400738 in words is "six hundred seventy billion, four hundred thousand, seven hundred thirty-eight".