61493052719685 has 16 divisors (see below), whose sum is σ = 98522022237120. Its totient is φ = 32751915488640.

The previous prime is 61493052719633. The next prime is 61493052719723. The reversal of 61493052719685 is 58691725039416.

It is not a de Polignac number, because 61493052719685 - 2⁷ = 61493052719557 is a prime.

It is a congruent number.

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, 2773694496 + ... + 2773716665.

It is an arithmetic number, because the mean of its divisors is an integer number (6157626389820).

It is a 2-persistent number, because it is pandigital, and so is 2⋅61493052719685 = 122986105439370, but 3⋅61493052719685 = 184479158159055 is not.

Almost surely, 2^{61493052719685} is an apocalyptic number.

It is an amenable number.

61493052719685 is a deficient number, since it is larger than the sum of its proper divisors (37028969517435).

61493052719685 is a wasteful number, since it uses less digits than its factorization.

61493052719685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5547411908.

The product of its (nonzero) digits is 97977600, while the sum is 66.

The spelling of 61493052719685 in words is "sixty-one trillion, four hundred ninety-three billion, fifty-two million, seven hundred nineteen thousand, six hundred eighty-five".