83078875842581 has 16 divisors (see below), whose sum is σ = 85530174428160. Its totient is φ = 80648183230080.

The previous prime is 83078875842539. The next prime is 83078875842583. The reversal of 83078875842581 is 18524857887038.

It is a cyclic number.

It is not a de Polignac number, because 83078875842581 - 2⁴⁶ = 12710131664917 is a prime.

It is a super-2 number, since 2×83078875842581² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83078875842499 and 83078875842508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83078875842583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15736400 + ... + 20341878.

It is an arithmetic number, because the mean of its divisors is an integer number (5345635901760).

Almost surely, 2^{83078875842581} is an apocalyptic number.

It is an amenable number.

83078875842581 is a deficient number, since it is larger than the sum of its proper divisors (2451298585579).

83078875842581 is a wasteful number, since it uses less digits than its factorization.

83078875842581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607716.

The product of its (nonzero) digits is 963379200, while the sum is 74.

The spelling of 83078875842581 in words is "eighty-three trillion, seventy-eight billion, eight hundred seventy-five million, eight hundred forty-two thousand, five hundred eighty-one".