8378372738738 has 16 divisors (see below), whose sum is σ = 12607441224984. Its totient is φ = 4175892827520.

The previous prime is 8378372738719. The next prime is 8378372738783.

8378372738738 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 6298077102409 + 2080295636329 = 2509597^2 + 1442323^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48933518 + ... + 49104438.

Almost surely, 2^{8378372738738} is an apocalyptic number.

8378372738738 is a deficient number, since it is larger than the sum of its proper divisors (4229068486246).

8378372738738 is a wasteful number, since it uses less digits than its factorization.

8378372738738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248557.

The product of its digits is 1593188352, while the sum is 74.

The spelling of 8378372738738 in words is "eight trillion, three hundred seventy-eight billion, three hundred seventy-two million, seven hundred thirty-eight thousand, seven hundred thirty-eight".