83257908477 has 8 divisors (see below), whose sum is σ = 116853204960. Its totient is φ = 52583942160.

The previous prime is 83257908463. The next prime is 83257908499. The reversal of 83257908477 is 77480975238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83257908477 - 2¹¹ = 83257906429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83257908477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83257908077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730332474 + ... + 730332587.

It is an arithmetic number, because the mean of its divisors is an integer number (14606650620).

Almost surely, 2^83257908477 is an apocalyptic number.

It is an amenable number.

83257908477 is a deficient number, since it is larger than the sum of its proper divisors (33595296483).

83257908477 is a wasteful number, since it uses less digits than its factorization.

83257908477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460665083.

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 83257908477 in words is "eighty-three billion, two hundred fifty-seven million, nine hundred eight thousand, four hundred seventy-seven".