61104777408 has 70 divisors (see below), whose sum is σ = 181133717996. Its totient is φ = 20368257408.

The previous prime is 61104777397. The next prime is 61104777421. The reversal of 61104777408 is 80477740116.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5888410 + ... + 5898777.

Almost surely, 2^61104777408 is an apocalyptic number.

It is an amenable number.

61104777408 is an abundant number, since it is smaller than the sum of its proper divisors (120028940588).

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

61104777408 is a wasteful number, since it uses less digits than its factorization.

61104777408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11787211 (or 11787192 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 61104777408 in words is "sixty-one billion, one hundred four million, seven hundred seventy-seven thousand, four hundred eight".