82640458761807 has 8 divisors (see below), whose sum is σ = 110198333598976. Its totient is φ = 55088111549592.

The previous prime is 82640458761781. The next prime is 82640458761853. The reversal of 82640458761807 is 70816785404628.

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

It is not a de Polignac number, because 82640458761807 - 2²⁶ = 82640391652943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82640458761907) 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, 1381871353 + ... + 1381931154.

It is an arithmetic number, because the mean of its divisors is an integer number (13774791699872).

Almost surely, 2^{82640458761807} is an apocalyptic number.

82640458761807 is a deficient number, since it is larger than the sum of its proper divisors (27557874837169).

82640458761807 is a wasteful number, since it uses less digits than its factorization.

82640458761807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763812477.

The product of its (nonzero) digits is 144506880, while the sum is 66.

The spelling of 82640458761807 in words is "eighty-two trillion, six hundred forty billion, four hundred fifty-eight million, seven hundred sixty-one thousand, eight hundred seven".