84990555957 has 8 divisors (see below), whose sum is σ = 113385614176. Its totient is φ = 56627934192.

The previous prime is 84990555941. The next prime is 84990555967. The reversal of 84990555957 is 75955509948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84990555957 - 2⁴ = 84990555941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84990555967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8102998 + ... + 8113479.

It is an arithmetic number, because the mean of its divisors is an integer number (14173201772).

Almost surely, 2^84990555957 is an apocalyptic number.

It is an amenable number.

84990555957 is a deficient number, since it is larger than the sum of its proper divisors (28395058219).

84990555957 is a wasteful number, since it uses less digits than its factorization.

84990555957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16218227.

The product of its (nonzero) digits is 102060000, while the sum is 66.

The spelling of 84990555957 in words is "eighty-four billion, nine hundred ninety million, five hundred fifty-five thousand, nine hundred fifty-seven".