82261267295851 has 4 divisors (see below), whose sum is σ = 94012876909552. Its totient is φ = 70509657682152.

The previous prime is 82261267295807. The next prime is 82261267295863. The reversal of 82261267295851 is 15859276216228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82261267295851 - 2⁴⁵ = 47076895207019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82261262295851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5875804806840 + ... + 5875804806853.

It is an arithmetic number, because the mean of its divisors is an integer number (23503219227388).

Almost surely, 2^{82261267295851} is an apocalyptic number.

82261267295851 is a deficient number, since it is larger than the sum of its proper divisors (11751609613701).

82261267295851 is a wasteful number, since it uses less digits than its factorization.

82261267295851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11751609613700.

The product of its digits is 58060800, while the sum is 64.

The spelling of 82261267295851 in words is "eighty-two trillion, two hundred sixty-one billion, two hundred sixty-seven million, two hundred ninety-five thousand, eight hundred fifty-one".