61773113760465 has 16 divisors (see below), whose sum is σ = 104650922135808. Its totient is φ = 31007680632576.

The previous prime is 61773113760443. The next prime is 61773113760467. The reversal of 61773113760465 is 56406731137716.

It is not a de Polignac number, because 61773113760465 - 2⁶ = 61773113760401 is a prime.

It is a super-3 number, since 3×61773113760465³ (a number of 42 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61773113760467) 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, 121123752217 + ... + 121123752726.

It is an arithmetic number, because the mean of its divisors is an integer number (6540682633488).

Almost surely, 2^{61773113760465} is an apocalyptic number.

It is an amenable number.

61773113760465 is a deficient number, since it is larger than the sum of its proper divisors (42877808375343).

61773113760465 is a wasteful number, since it uses less digits than its factorization.

61773113760465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242247504968.

The product of its (nonzero) digits is 13335840, while the sum is 57.

The spelling of 61773113760465 in words is "sixty-one trillion, seven hundred seventy-three billion, one hundred thirteen million, seven hundred sixty thousand, four hundred sixty-five".