61975039295881 has 4 divisors (see below), whose sum is σ = 62048907043200. Its totient is φ = 61901171548564.

The previous prime is 61975039295693. The next prime is 61975039295903. The reversal of 61975039295881 is 18859293057916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61975039295881 - 2¹⁷ = 61975039164809 is a prime.

It is a super-2 number, since 2×61975039295881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61975039295681) 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, 36933872401 + ... + 36933874078.

It is an arithmetic number, because the mean of its divisors is an integer number (15512226760800).

Almost surely, 2^{61975039295881} is an apocalyptic number.

It is an amenable number.

61975039295881 is a deficient number, since it is larger than the sum of its proper divisors (73867747319).

61975039295881 is an equidigital number, since it uses as much as digits as its factorization.

61975039295881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73867747318.

The product of its (nonzero) digits is 293932800, while the sum is 73.

The spelling of 61975039295881 in words is "sixty-one trillion, nine hundred seventy-five billion, thirty-nine million, two hundred ninety-five thousand, eight hundred eighty-one".