61593801401 has 6 divisors (see below), whose sum is σ = 67702277706. Its totient is φ = 55994364800.

The previous prime is 61593801377. The next prime is 61593801403. The reversal of 61593801401 is 10410839516.

It can be written as a sum of positive squares in only one way, i.e., 55459779001 + 6134022400 = 235499^2 + 78320^2 .

It is not a de Polignac number, because 61593801401 - 2⁶ = 61593801337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61593801403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254519720 + ... + 254519961.

It is an arithmetic number, because the mean of its divisors is an integer number (11283712951).

Almost surely, 2^61593801401 is an apocalyptic number.

It is an amenable number.

61593801401 is a deficient number, since it is larger than the sum of its proper divisors (6108476305).

61593801401 is a wasteful number, since it uses less digits than its factorization.

61593801401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509039703 (or 509039692 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 61593801401 in words is "sixty-one billion, five hundred ninety-three million, eight hundred one thousand, four hundred one".