83770855625725 has 12 divisors (see below), whose sum is σ = 103916138628960. Its totient is φ = 66990698918000.

The previous prime is 83770855625687. The next prime is 83770855625741. The reversal of 83770855625725 is 52752655807738.

It is not a de Polignac number, because 83770855625725 - 2²¹ = 83770853528573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649573801 + ... + 649702750.

It is an arithmetic number, because the mean of its divisors is an integer number (8659678219080).

Almost surely, 2^{83770855625725} is an apocalyptic number.

It is an amenable number.

83770855625725 is a deficient number, since it is larger than the sum of its proper divisors (20145283003235).

83770855625725 is a wasteful number, since it uses less digits than its factorization.

83770855625725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299279140 (or 1299279135 counting only the distinct ones).

The product of its (nonzero) digits is 987840000, while the sum is 70.

The spelling of 83770855625725 in words is "eighty-three trillion, seven hundred seventy billion, eight hundred fifty-five million, six hundred twenty-five thousand, seven hundred twenty-five".