72417150311357 has 16 divisors (see below), whose sum is σ = 72953300808432. Its totient is φ = 71882986721280.

The previous prime is 72417150311353. The next prime is 72417150311371. The reversal of 72417150311357 is 75311305171427.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8638302931801 + 63778847379556 = 2939099^2 + 7986166^2 .

It is a cyclic number.

It is not a de Polignac number, because 72417150311357 - 2² = 72417150311353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72417150311353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073878913 + ... + 1073946345.

It is an arithmetic number, because the mean of its divisors is an integer number (4559581300527).

Almost surely, 2^{72417150311357} is an apocalyptic number.

It is an amenable number.

72417150311357 is a deficient number, since it is larger than the sum of its proper divisors (536150497075).

72417150311357 is a wasteful number, since it uses less digits than its factorization.

72417150311357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82048.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 72417150311357 in words is "seventy-two trillion, four hundred seventeen billion, one hundred fifty million, three hundred eleven thousand, three hundred fifty-seven".