84877847145 has 96 divisors (see below), whose sum is σ = 181254528000. Its totient is φ = 35780631552.

The previous prime is 84877847123. The next prime is 84877847179. The reversal of 84877847145 is 54174877848.

84877847145 is a `hidden beast` number, since 8 + 487 + 7 + 8 + 4 + 7 + 145 = 666.

It is not a de Polignac number, because 84877847145 - 2⁹ = 84877846633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4285776 + ... + 4305534.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068000).

Almost surely, 2^84877847145 is an apocalyptic number.

It is an amenable number.

84877847145 is an abundant number, since it is smaller than the sum of its proper divisors (96376680855).

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

84877847145 is a wasteful number, since it uses less digits than its factorization.

84877847145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20839 (or 20836 counting only the distinct ones).

The product of its digits is 56197120, while the sum is 63.

The spelling of 84877847145 in words is "eighty-four billion, eight hundred seventy-seven million, eight hundred forty-seven thousand, one hundred forty-five".