61365425265427 has 4 divisors (see below), whose sum is σ = 61365443324896. Its totient is φ = 61365407205960.

The previous prime is 61365425265413. The next prime is 61365425265433. The reversal of 61365425265427 is 72456252456316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61365425265427 - 2³⁹ = 60815669451539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61365425265437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2221899 + ... + 11299012.

It is an arithmetic number, because the mean of its divisors is an integer number (15341360831224).

Almost surely, 2^{61365425265427} is an apocalyptic number.

61365425265427 is a deficient number, since it is larger than the sum of its proper divisors (18059469).

61365425265427 is a wasteful number, since it uses less digits than its factorization.

61365425265427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18059468.

The product of its digits is 72576000, while the sum is 58.

The spelling of 61365425265427 in words is "sixty-one trillion, three hundred sixty-five billion, four hundred twenty-five million, two hundred sixty-five thousand, four hundred twenty-seven".