82511007457 has 8 divisors (see below), whose sum is σ = 86856356160. Its totient is φ = 78165925200.

The previous prime is 82511007427. The next prime is 82511007479. The reversal of 82511007457 is 75470011528.

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

It is a cyclic number.

It is not a de Polignac number, because 82511007457 - 2⁷ = 82511007329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82511007427) 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, 1043943 + ... + 1120195.

It is an arithmetic number, because the mean of its divisors is an integer number (10857044520).

Almost surely, 2^82511007457 is an apocalyptic number.

It is an amenable number.

82511007457 is a deficient number, since it is larger than the sum of its proper divisors (4345348703).

82511007457 is a wasteful number, since it uses less digits than its factorization.

82511007457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133223.

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 82511007457 in words is "eighty-two billion, five hundred eleven million, seven thousand, four hundred fifty-seven".