72650202677 has 4 divisors (see below), whose sum is σ = 78238679820. Its totient is φ = 67061725536.

The previous prime is 72650202641. The next prime is 72650202679. The reversal of 72650202677 is 77620205627.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27542389681 + 45107812996 = 165959^2 + 212386^2 .

It is not a de Polignac number, because 72650202677 - 2⁸ = 72650202421 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 (72650202679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2794238552 + ... + 2794238577.

It is an arithmetic number, because the mean of its divisors is an integer number (19559669955).

Almost surely, 2^72650202677 is an apocalyptic number.

It is an amenable number.

72650202677 is a deficient number, since it is larger than the sum of its proper divisors (5588477143).

72650202677 is a wasteful number, since it uses less digits than its factorization.

72650202677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588477142.

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 72650202677 in words is "seventy-two billion, six hundred fifty million, two hundred two thousand, six hundred seventy-seven".