28372367431278 has 48 divisors (see below), whose sum is σ = 66207088527216. Its totient is φ = 8729313338880.

The previous prime is 28372367431259. The next prime is 28372367431297. The reversal of 28372367431278 is 87213476327382.

It is a happy number.

28372367431278 is a `hidden beast` number, since 2 + 8 + 3 + 72 + 3 + 67 + 431 + 2 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (28372367431259) and next prime (28372367431297).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1310788 + ... + 7646103.

It is an arithmetic number, because the mean of its divisors is an integer number (1379314344317).

Almost surely, 2^{28372367431278} is an apocalyptic number.

28372367431278 is an abundant number, since it is smaller than the sum of its proper divisors (37834721095938).

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

28372367431278 is a wasteful number, since it uses less digits than its factorization.

28372367431278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8970449 (or 8970446 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 63.

The spelling of 28372367431278 in words is "twenty-eight trillion, three hundred seventy-two billion, three hundred sixty-seven million, four hundred thirty-one thousand, two hundred seventy-eight".