72615651627 has 8 divisors (see below), whose sum is σ = 97987385664. Its totient is φ = 47827176008.

The previous prime is 72615651571. The next prime is 72615651643.

72615651627 is nontrivially palindromic in base 10.

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 72615651627 - 2⁷ = 72615651499 is a prime.

It is a super-2 number, since 2×72615651627² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72615651127) 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, 145814313 + ... + 145814810.

It is an arithmetic number, because the mean of its divisors is an integer number (12248423208).

Almost surely, 2^72615651627 is an apocalyptic number.

72615651627 is a deficient number, since it is larger than the sum of its proper divisors (25371734037).

72615651627 is a wasteful number, since it uses less digits than its factorization.

72615651627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291629209.

The product of its digits is 1058400, while the sum is 48.

The spelling of 72615651627 in words is "seventy-two billion, six hundred fifteen million, six hundred fifty-one thousand, six hundred twenty-seven".