84875297479820 has 48 divisors (see below), whose sum is σ = 180390700643328. Its totient is φ = 33540127788480.

The previous prime is 84875297479811. The next prime is 84875297479823. The reversal of 84875297479820 is 2897479257848.

It is a happy number.

It is a super-2 number, since 2×84875297479820² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84875297479823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59162405 + ... + 60580035.

It is an arithmetic number, because the mean of its divisors is an integer number (3758139596736).

Almost surely, 2^{84875297479820} is an apocalyptic number.

It is an amenable number.

84875297479820 is an abundant number, since it is smaller than the sum of its proper divisors (95515403163508).

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

84875297479820 is a wasteful number, since it uses less digits than its factorization.

84875297479820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453790 (or 1453788 counting only the distinct ones).

The product of its (nonzero) digits is 4551966720, while the sum is 80.

The spelling of 84875297479820 in words is "eighty-four trillion, eight hundred seventy-five billion, two hundred ninety-seven million, four hundred seventy-nine thousand, eight hundred twenty".