61694375952 has 160 divisors (see below), whose sum is σ = 175351633920. Its totient is φ = 18536117760.

The previous prime is 61694375891. The next prime is 61694375969. The reversal of 61694375952 is 25957349616.

It is a junction number, because it is equal to n+sod(n) for n = 61694375892 and 61694375901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61879518 + ... + 61880514.

It is an arithmetic number, because the mean of its divisors is an integer number (1095947712).

Almost surely, 2^61694375952 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 61694375952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87675816960).

61694375952 is an abundant number, since it is smaller than the sum of its proper divisors (113657257968).

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

61694375952 is a wasteful number, since it uses less digits than its factorization.

61694375952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1895 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 57.

The spelling of 61694375952 in words is "sixty-one billion, six hundred ninety-four million, three hundred seventy-five thousand, nine hundred fifty-two".