61909550080773 has 16 divisors (see below), whose sum is σ = 82653121297920. Its totient is φ = 41219508879216.

The previous prime is 61909550080757. The next prime is 61909550080783. The reversal of 61909550080773 is 37708005590916.

It is not a de Polignac number, because 61909550080773 - 2⁴ = 61909550080757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61909550080783) 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, 95341786 + ... + 95988932.

It is an arithmetic number, because the mean of its divisors is an integer number (5165820081120).

Almost surely, 2^{61909550080773} is an apocalyptic number.

It is an amenable number.

61909550080773 is a deficient number, since it is larger than the sum of its proper divisors (20743571217147).

61909550080773 is a wasteful number, since it uses less digits than its factorization.

61909550080773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688456.

The product of its (nonzero) digits is 14288400, while the sum is 60.

The spelling of 61909550080773 in words is "sixty-one trillion, nine hundred nine billion, five hundred fifty million, eighty thousand, seven hundred seventy-three".