61791358152 has 48 divisors (see below), whose sum is σ = 159988973040. Its totient is φ = 19886867392.

The previous prime is 61791358151. The next prime is 61791358163. The reversal of 61791358152 is 25185319716.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61791358151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1510518 + ... + 1550885.

It is an arithmetic number, because the mean of its divisors is an integer number (3333103605).

Almost surely, 2^61791358152 is an apocalyptic number.

It is an amenable number.

61791358152 is an abundant number, since it is smaller than the sum of its proper divisors (98197614888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61791358152 is a wasteful number, since it uses less digits than its factorization.

61791358152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061470 (or 3061437 counting only the distinct ones).

The product of its digits is 453600, while the sum is 48.

The spelling of 61791358152 in words is "sixty-one billion, seven hundred ninety-one million, three hundred fifty-eight thousand, one hundred fifty-two".