61365123597 has 16 divisors (see below), whose sum is σ = 83161714688. Its totient is φ = 40244569200.

The previous prime is 61365123559. The next prime is 61365123641. The reversal of 61365123597 is 79532156316.

61365123597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61365123597 - 2²⁶ = 61298014733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61365123497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610933 + ... + 704250.

It is an arithmetic number, because the mean of its divisors is an integer number (5197607168).

Almost surely, 2^61365123597 is an apocalyptic number.

It is an amenable number.

61365123597 is a deficient number, since it is larger than the sum of its proper divisors (21796591091).

61365123597 is a wasteful number, since it uses less digits than its factorization.

61365123597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315440.

The product of its digits is 1020600, while the sum is 48.

The spelling of 61365123597 in words is "sixty-one billion, three hundred sixty-five million, one hundred twenty-three thousand, five hundred ninety-seven".