61772265020517 has 32 divisors (see below), whose sum is σ = 83624067072000. Its totient is φ = 40553752187520.

The previous prime is 61772265020513. The next prime is 61772265020519. The reversal of 61772265020517 is 71502056227716.

It is not a de Polignac number, because 61772265020517 - 2² = 61772265020513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61772265020517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61772265020513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589203292 + ... + 589308122.

It is an arithmetic number, because the mean of its divisors is an integer number (2613252096000).

Almost surely, 2^{61772265020517} is an apocalyptic number.

It is an amenable number.

61772265020517 is a deficient number, since it is larger than the sum of its proper divisors (21851802051483).

61772265020517 is a wasteful number, since it uses less digits than its factorization.

61772265020517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111401.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 61772265020517 in words is "sixty-one trillion, seven hundred seventy-two billion, two hundred sixty-five million, twenty thousand, five hundred seventeen".