61462976881 has 4 divisors (see below), whose sum is σ = 61481839600. Its totient is φ = 61444114164.

The previous prime is 61462976857. The next prime is 61462976903. The reversal of 61462976881 is 18867926416.

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 61462976881 - 2¹⁷ = 61462845809 is a prime.

It is a super-2 number, since 2×61462976881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61462971881) 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, 9426471 + ... + 9432988.

It is an arithmetic number, because the mean of its divisors is an integer number (15370459900).

Almost surely, 2^61462976881 is an apocalyptic number.

It is an amenable number.

61462976881 is a deficient number, since it is larger than the sum of its proper divisors (18862719).

61462976881 is a wasteful number, since it uses less digits than its factorization.

61462976881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18862718.

The product of its digits is 6967296, while the sum is 58.

The spelling of 61462976881 in words is "sixty-one billion, four hundred sixty-two million, nine hundred seventy-six thousand, eight hundred eighty-one".