72542515326145 has 16 divisors (see below), whose sum is σ = 87116438021760. Its totient is φ = 57990406636800.

The previous prime is 72542515326091. The next prime is 72542515326217. The reversal of 72542515326145 is 54162351524527.

It is not a de Polignac number, because 72542515326145 - 2²⁵ = 72542481771713 is a prime.

It is a super-2 number, since 2×72542515326145² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72542515326092 and 72542515326101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78301780 + ... + 79222810.

It is an arithmetic number, because the mean of its divisors is an integer number (5444777376360).

Almost surely, 2^{72542515326145} is an apocalyptic number.

It is an amenable number.

72542515326145 is a deficient number, since it is larger than the sum of its proper divisors (14573922695615).

72542515326145 is a wasteful number, since it uses less digits than its factorization.

72542515326145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932856.

The product of its digits is 10080000, while the sum is 52.

The spelling of 72542515326145 in words is "seventy-two trillion, five hundred forty-two billion, five hundred fifteen million, three hundred twenty-six thousand, one hundred forty-five".