61162713798 has 32 divisors (see below), whose sum is σ = 135152395776. Its totient is φ = 18354027648.

The previous prime is 61162713769. The next prime is 61162713811. The reversal of 61162713798 is 89731726116.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 61162713798.

It is a congruent number.

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, 13033186 + ... + 13037877.

It is an arithmetic number, because the mean of its divisors is an integer number (4223512368).

Almost surely, 2^61162713798 is an apocalyptic number.

61162713798 is an abundant number, since it is smaller than the sum of its proper divisors (73989681978).

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

61162713798 is a wasteful number, since it uses less digits than its factorization.

61162713798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26071108.

The product of its digits is 762048, while the sum is 51.

The spelling of 61162713798 in words is "sixty-one billion, one hundred sixty-two million, seven hundred thirteen thousand, seven hundred ninety-eight".