61281675884 has 48 divisors (see below), whose sum is σ = 127407440160. Its totient is φ = 25423664640.

The previous prime is 61281675839. The next prime is 61281675919. The reversal of 61281675884 is 48857618216.

It is a super-3 number, since 3×61281675884³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550979 + ... + 652794.

It is an arithmetic number, because the mean of its divisors is an integer number (2654321670).

Almost surely, 2^61281675884 is an apocalyptic number.

It is an amenable number.

61281675884 is an abundant number, since it is smaller than the sum of its proper divisors (66125764276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61281675884 is a wasteful number, since it uses less digits than its factorization.

61281675884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203890 (or 1203888 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The spelling of 61281675884 in words is "sixty-one billion, two hundred eighty-one million, six hundred seventy-five thousand, eight hundred eighty-four".