82881567257 has 8 divisors (see below), whose sum is σ = 83207234880. Its totient is φ = 82555979920.

The previous prime is 82881567227. The next prime is 82881567311. The reversal of 82881567257 is 75276518828.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82881567257 is a prime.

It is a super-2 number, since 2×82881567257² (a number of 23 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 = 82881567196 and 82881567205.

It is not an unprimeable number, because it can be changed into a prime (82881567227) 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, 2841407 + ... + 2870427.

It is an arithmetic number, because the mean of its divisors is an integer number (10400904360).

Almost surely, 2^82881567257 is an apocalyptic number.

It is an amenable number.

82881567257 is a deficient number, since it is larger than the sum of its proper divisors (325667623).

82881567257 is a wasteful number, since it uses less digits than its factorization.

82881567257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40143.

The product of its digits is 15052800, while the sum is 59.

The spelling of 82881567257 in words is "eighty-two billion, eight hundred eighty-one million, five hundred sixty-seven thousand, two hundred fifty-seven".