61345890573 has 16 divisors (see below), whose sum is σ = 92307297600. Its totient is φ = 35897281280.

The previous prime is 61345890509. The next prime is 61345890587. The reversal of 61345890573 is 37509854316.

It is a cyclic number.

It is not a de Polignac number, because 61345890573 - 2⁶ = 61345890509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61345890373) 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, 32050188 + ... + 32052101.

It is an arithmetic number, because the mean of its divisors is an integer number (5769206100).

Almost surely, 2^61345890573 is an apocalyptic number.

It is an amenable number.

61345890573 is a deficient number, since it is larger than the sum of its proper divisors (30961407027).

61345890573 is a wasteful number, since it uses less digits than its factorization.

61345890573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64102332.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 61345890573 in words is "sixty-one billion, three hundred forty-five million, eight hundred ninety thousand, five hundred seventy-three".