83986845450970 has 64 divisors (see below), whose sum is σ = 188625793824000. Its totient is φ = 26157409205760.

The previous prime is 83986845450943. The next prime is 83986845450983. The reversal of 83986845450970 is 7905454868938.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41316945 + ... + 43302004.

It is an arithmetic number, because the mean of its divisors is an integer number (2947278028500).

Almost surely, 2^{83986845450970} is an apocalyptic number.

83986845450970 is an abundant number, since it is smaller than the sum of its proper divisors (104638948373030).

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

83986845450970 is a wasteful number, since it uses less digits than its factorization.

83986845450970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84620263.

The product of its (nonzero) digits is 2090188800, while the sum is 76.

The spelling of 83986845450970 in words is "eighty-three trillion, nine hundred eighty-six billion, eight hundred forty-five million, four hundred fifty thousand, nine hundred seventy".