83975622635421 has 48 divisors (see below), whose sum is σ = 139071865121280. Its totient is φ = 48331293420960.

The previous prime is 83975622635381. The next prime is 83975622635431. The reversal of 83975622635421 is 12453622657938.

83975622635421 is a `hidden beast` number, since 8 + 3 + 9 + 7 + 5 + 6 + 22 + 63 + 542 + 1 = 666.

It is not a de Polignac number, because 83975622635421 - 2¹¹ = 83975622633373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83975622635431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132345151 + ... + 132978156.

It is an arithmetic number, because the mean of its divisors is an integer number (2897330523360).

Almost surely, 2^{83975622635421} is an apocalyptic number.

It is an amenable number.

83975622635421 is a deficient number, since it is larger than the sum of its proper divisors (55096242485859).

83975622635421 is a wasteful number, since it uses less digits than its factorization.

83975622635421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265323486 (or 265323483 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 63.

The spelling of 83975622635421 in words is "eighty-three trillion, nine hundred seventy-five billion, six hundred twenty-two million, six hundred thirty-five thousand, four hundred twenty-one".