61694909427606 has 128 divisors (see below), whose sum is σ = 152254335744000. Its totient is φ = 16229415121920.

The previous prime is 61694909427587. The next prime is 61694909427631. The reversal of 61694909427606 is 60672490949616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3081499876 + ... + 3081519896.

It is an arithmetic number, because the mean of its divisors is an integer number (1189486998000).

Almost surely, 2^{61694909427606} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61694909427606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76127167872000).

61694909427606 is an abundant number, since it is smaller than the sum of its proper divisors (90559426316394).

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

61694909427606 is a wasteful number, since it uses less digits than its factorization.

61694909427606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34254.

The product of its (nonzero) digits is 211631616, while the sum is 69.

The spelling of 61694909427606 in words is "sixty-one trillion, six hundred ninety-four billion, nine hundred nine million, four hundred twenty-seven thousand, six hundred six".