72315571361767 has 8 divisors (see below), whose sum is σ = 72733809081600. Its totient is φ = 71897491865784.

The previous prime is 72315571361701. The next prime is 72315571361791. The reversal of 72315571361767 is 76716317551327.

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 72315571361767 - 2¹⁵ = 72315571328999 is a prime.

It is a super-2 number, since 2×72315571361767² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72315571361567) 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, 38639167 + ... + 40467472.

It is an arithmetic number, because the mean of its divisors is an integer number (9091726135200).

Almost surely, 2^{72315571361767} is an apocalyptic number.

72315571361767 is a deficient number, since it is larger than the sum of its proper divisors (418237719833).

72315571361767 is a wasteful number, since it uses less digits than its factorization.

72315571361767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79111925.

The product of its digits is 38896200, while the sum is 61.

The spelling of 72315571361767 in words is "seventy-two trillion, three hundred fifteen billion, five hundred seventy-one million, three hundred sixty-one thousand, seven hundred sixty-seven".