61696185719 has 6 divisors (see below), whose sum is σ = 71769032424. Its totient is φ = 52882444860.

The previous prime is 61696185703. The next prime is 61696185721. The reversal of 61696185719 is 91758169616.

It is not a de Polignac number, because 61696185719 - 2⁴ = 61696185703 is a prime.

It is a super-2 number, since 2×61696185719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61696185739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 629552867 + ... + 629552964.

It is an arithmetic number, because the mean of its divisors is an integer number (11961505404).

Almost surely, 2^61696185719 is an apocalyptic number.

61696185719 is a deficient number, since it is larger than the sum of its proper divisors (10072846705).

61696185719 is a wasteful number, since it uses less digits than its factorization.

61696185719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259105845 (or 1259105838 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 59.

The spelling of 61696185719 in words is "sixty-one billion, six hundred ninety-six million, one hundred eighty-five thousand, seven hundred nineteen".