72277956247 has 8 divisors (see below), whose sum is σ = 82615104000. Its totient is φ = 61943739864.

The previous prime is 72277956239. The next prime is 72277956277. The reversal of 72277956247 is 74265977227.

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

It is a cyclic number.

It is not a de Polignac number, because 72277956247 - 2³ = 72277956239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72277956191 and 72277956200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72277956277) 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, 679747 + ... + 778852.

It is an arithmetic number, because the mean of its divisors is an integer number (10326888000).

Almost surely, 2^72277956247 is an apocalyptic number.

72277956247 is a deficient number, since it is larger than the sum of its proper divisors (10337147753).

72277956247 is a wasteful number, since it uses less digits than its factorization.

72277956247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465685.

The product of its digits is 20744640, while the sum is 58.

The spelling of 72277956247 in words is "seventy-two billion, two hundred seventy-seven million, nine hundred fifty-six thousand, two hundred forty-seven".