38690345518 has 32 divisors (see below), whose sum is σ = 65056854240. Its totient is φ = 17102194560.

The previous prime is 38690345501. The next prime is 38690345579. The reversal of 38690345518 is 81554309683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1672680 + ... + 1695652.

It is an arithmetic number, because the mean of its divisors is an integer number (2033026695).

Almost surely, 2^38690345518 is an apocalyptic number.

38690345518 is a deficient number, since it is larger than the sum of its proper divisors (26366508722).

38690345518 is a wasteful number, since it uses less digits than its factorization.

38690345518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25092.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 38690345518 in words is "thirty-eight billion, six hundred ninety million, three hundred forty-five thousand, five hundred eighteen".