38930138801631 has 144 divisors (see below), whose sum is σ = 73356108716800. Its totient is φ = 20223370783440.

The previous prime is 38930138801557. The next prime is 38930138801633. The reversal of 38930138801631 is 13610883103983.

It is not a de Polignac number, because 38930138801631 - 2⁷ = 38930138801503 is a prime.

It is a super-2 number, since 2×38930138801631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38930138801633) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 149913780 + ... + 150173238.

Almost surely, 2^{38930138801631} is an apocalyptic number.

38930138801631 is a deficient number, since it is larger than the sum of its proper divisors (34425969915169).

38930138801631 is an frugal number, since it uses more digits than its factorization.

38930138801631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259521 (or 259480 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 38930138801631 in words is "thirty-eight trillion, nine hundred thirty billion, one hundred thirty-eight million, eight hundred one thousand, six hundred thirty-one".