83851357638025 has 12 divisors (see below), whose sum is σ = 103976043982272. Its totient is φ = 67080853522640.

The previous prime is 83851357637933. The next prime is 83851357638073. The reversal of 83851357638025 is 52083675315838.

It is not a de Polignac number, because 83851357638025 - 2¹¹ = 83851357635977 is a prime.

It is a Duffinian 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, 1731852 + ... + 13065298.

It is an arithmetic number, because the mean of its divisors is an integer number (8664670331856).

Almost surely, 2^{83851357638025} is an apocalyptic number.

It is an amenable number.

83851357638025 is a deficient number, since it is larger than the sum of its proper divisors (20124686344247).

83851357638025 is a wasteful number, since it uses less digits than its factorization.

83851357638025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11629400 (or 11629395 counting only the distinct ones).

The product of its (nonzero) digits is 145152000, while the sum is 64.

The spelling of 83851357638025 in words is "eighty-three trillion, eight hundred fifty-one billion, three hundred fifty-seven million, six hundred thirty-eight thousand, twenty-five".