61314668744 has 64 divisors (see below), whose sum is σ = 134725127040. Its totient is φ = 25618037760.

The previous prime is 61314668731. The next prime is 61314668801. The reversal of 61314668744 is 44786641316.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61314668692 and 61314668701.

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, 306587 + ... + 465429.

It is an arithmetic number, because the mean of its divisors is an integer number (2105080110).

Almost surely, 2^61314668744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61314668744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67362563520).

61314668744 is an abundant number, since it is smaller than the sum of its proper divisors (73410458296).

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

61314668744 is a wasteful number, since it uses less digits than its factorization.

61314668744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159030 (or 159026 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 50.

The spelling of 61314668744 in words is "sixty-one billion, three hundred fourteen million, six hundred sixty-eight thousand, seven hundred forty-four".