84690372474 has 80 divisors (see below), whose sum is σ = 190590681600. Its totient is φ = 28108226016.

The previous prime is 84690372467. The next prime is 84690372479. The reversal of 84690372474 is 47427309648.

84690372474 is a `hidden beast` number, since 84 + 6 + 90 + 3 + 7 + 2 + 474 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 84690372474.

It is not an unprimeable number, because it can be changed into a prime (84690372479) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48146007 + ... + 48147765.

It is an arithmetic number, because the mean of its divisors is an integer number (2382383520).

Almost surely, 2^84690372474 is an apocalyptic number.

84690372474 is an abundant number, since it is smaller than the sum of its proper divisors (105900309126).

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

84690372474 is a wasteful number, since it uses less digits than its factorization.

84690372474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 84690372474 in words is "eighty-four billion, six hundred ninety million, three hundred seventy-two thousand, four hundred seventy-four".