61317941368146 has 32 divisors (see below), whose sum is σ = 129976937411328. Its totient is φ = 19218159847680.

The previous prime is 61317941368141. The next prime is 61317941368213. The reversal of 61317941368146 is 64186314971316.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61317941368146.

It is not an unprimeable number, because it can be changed into a prime (61317941368141) 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, 294291690 + ... + 294499973.

It is an arithmetic number, because the mean of its divisors is an integer number (4061779294104).

Almost surely, 2^{61317941368146} is an apocalyptic number.

61317941368146 is an abundant number, since it is smaller than the sum of its proper divisors (68658996043182).

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

61317941368146 is a wasteful number, since it uses less digits than its factorization.

61317941368146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588792706.

The product of its digits is 15676416, while the sum is 60.

The spelling of 61317941368146 in words is "sixty-one trillion, three hundred seventeen billion, nine hundred forty-one million, three hundred sixty-eight thousand, one hundred forty-six".