84372457684 has 12 divisors (see below), whose sum is σ = 150072322708. Its totient is φ = 41494651200.

The previous prime is 84372457681. The next prime is 84372457691. The reversal of 84372457684 is 48675427348.

It can be written as a sum of positive squares in 2 ways, for example, as 19435148100 + 64937309584 = 139410^2 + 254828^2 .

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84372457681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172894137 + ... + 172894624.

Almost surely, 2^84372457684 is an apocalyptic number.

It is an amenable number.

84372457684 is a deficient number, since it is larger than the sum of its proper divisors (65699865024).

84372457684 is a wasteful number, since it uses less digits than its factorization.

84372457684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345788826 (or 345788824 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 58.

The spelling of 84372457684 in words is "eighty-four billion, three hundred seventy-two million, four hundred fifty-seven thousand, six hundred eighty-four".