72277862079 has 4 divisors (see below), whose sum is σ = 96370482776. Its totient is φ = 48185241384.

The previous prime is 72277862021. The next prime is 72277862093. The reversal of 72277862079 is 97026877227.

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

It is not a de Polignac number, because 72277862079 - 2⁹ = 72277861567 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 (72277162079) 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, 12046310344 + ... + 12046310349.

It is an arithmetic number, because the mean of its divisors is an integer number (24092620694).

Almost surely, 2^72277862079 is an apocalyptic number.

72277862079 is a deficient number, since it is larger than the sum of its proper divisors (24092620697).

72277862079 is a wasteful number, since it uses less digits than its factorization.

72277862079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24092620696.

The product of its (nonzero) digits is 8297856, while the sum is 57.

The spelling of 72277862079 in words is "seventy-two billion, two hundred seventy-seven million, eight hundred sixty-two thousand, seventy-nine".