3678232320438 has 64 divisors (see below), whose sum is σ = 8178529142784. Its totient is φ = 1095171840000.

The previous prime is 3678232320437. The next prime is 3678232320457. The reversal of 3678232320438 is 8340232328763.

It is a super-2 number, since 2×3678232320438² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678232320437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36439638 + ... + 36540438.

It is an arithmetic number, because the mean of its divisors is an integer number (127789517856).

Almost surely, 2^{3678232320438} is an apocalyptic number.

3678232320438 is an abundant number, since it is smaller than the sum of its proper divisors (4500296822346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3678232320438 is a wasteful number, since it uses less digits than its factorization.

3678232320438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115941.

The product of its (nonzero) digits is 6967296, while the sum is 51.

The spelling of 3678232320438 in words is "three trillion, six hundred seventy-eight billion, two hundred thirty-two million, three hundred twenty thousand, four hundred thirty-eight".