61612451323 has 8 divisors (see below), whose sum is σ = 64321765200. Its totient is φ = 58942120608.

The previous prime is 61612451311. The next prime is 61612451347. The reversal of 61612451323 is 32315421616.

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 61612451323 - 2²¹ = 61610354171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61612451363) 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, 9742561 + ... + 9748882.

It is an arithmetic number, because the mean of its divisors is an integer number (8040220650).

Almost surely, 2^61612451323 is an apocalyptic number.

61612451323 is a deficient number, since it is larger than the sum of its proper divisors (2709313877).

61612451323 is a wasteful number, since it uses less digits than its factorization.

61612451323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19491581.

The product of its digits is 25920, while the sum is 34.

Adding to 61612451323 its reverse (32315421616), we get a palindrome (93927872939).

The spelling of 61612451323 in words is "sixty-one billion, six hundred twelve million, four hundred fifty-one thousand, three hundred twenty-three".