72762040272247 has 4 divisors (see below), whose sum is σ = 72762060695200. Its totient is φ = 72762019849296.

The previous prime is 72762040272227. The next prime is 72762040272281. The reversal of 72762040272247 is 74227204026727.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72762040272247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72762040272194 and 72762040272203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72762040272217) 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, 3314622 + ... + 12510427.

It is an arithmetic number, because the mean of its divisors is an integer number (18190515173800).

Almost surely, 2^{72762040272247} is an apocalyptic number.

72762040272247 is a deficient number, since it is larger than the sum of its proper divisors (20422953).

72762040272247 is a wasteful number, since it uses less digits than its factorization.

72762040272247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20422952.

The product of its (nonzero) digits is 7375872, while the sum is 52.

The spelling of 72762040272247 in words is "seventy-two trillion, seven hundred sixty-two billion, forty million, two hundred seventy-two thousand, two hundred forty-seven".