378038720631 has 16 divisors (see below), whose sum is σ = 592172542080. Its totient is φ = 211490193120.

The previous prime is 378038720629. The next prime is 378038720639. The reversal of 378038720631 is 136027830873.

It is not a de Polignac number, because 378038720631 - 2¹ = 378038720629 is a prime.

It is a super-2 number, since 2×378038720631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378038720639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440604141 + ... + 440604998.

It is an arithmetic number, because the mean of its divisors is an integer number (37010783880).

Almost surely, 2^378038720631 is an apocalyptic number.

378038720631 is a deficient number, since it is larger than the sum of its proper divisors (214133821449).

378038720631 is a wasteful number, since it uses less digits than its factorization.

378038720631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881209166.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 378038720631 in words is "three hundred seventy-eight billion, thirty-eight million, seven hundred twenty thousand, six hundred thirty-one".