72407615460673 has 4 divisors (see below), whose sum is σ = 72407644795648. Its totient is φ = 72407586125700.

The previous prime is 72407615460647. The next prime is 72407615460737. The reversal of 72407615460673 is 37606451670427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72407615460673 - 2²⁹ = 72407078589761 is a prime.

It is a super-2 number, since 2×72407615460673² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72407615460613) 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, 10586553 + ... + 16027798.

It is an arithmetic number, because the mean of its divisors is an integer number (18101911198912).

Almost surely, 2^{72407615460673} is an apocalyptic number.

It is an amenable number.

72407615460673 is a deficient number, since it is larger than the sum of its proper divisors (29334975).

72407615460673 is a wasteful number, since it uses less digits than its factorization.

72407615460673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29334974.

The product of its (nonzero) digits is 35562240, while the sum is 58.

The spelling of 72407615460673 in words is "seventy-two trillion, four hundred seven billion, six hundred fifteen million, four hundred sixty thousand, six hundred seventy-three".