61324156523 has 16 divisors (see below), whose sum is σ = 72528860160. Its totient is φ = 50731850400.

The previous prime is 61324156483. The next prime is 61324156549. The reversal of 61324156523 is 32565142316.

It is not a de Polignac number, because 61324156523 - 2²⁶ = 61257047659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61324156723) 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, 494618 + ... + 606048.

It is an arithmetic number, because the mean of its divisors is an integer number (4533053760).

Almost surely, 2^61324156523 is an apocalyptic number.

61324156523 is a deficient number, since it is larger than the sum of its proper divisors (11204703637).

61324156523 is a wasteful number, since it uses less digits than its factorization.

61324156523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114178.

The product of its digits is 129600, while the sum is 38.

Adding to 61324156523 its reverse (32565142316), we get a palindrome (93889298839).

The spelling of 61324156523 in words is "sixty-one billion, three hundred twenty-four million, one hundred fifty-six thousand, five hundred twenty-three".