61410771808 has 96 divisors (see below), whose sum is σ = 124554024000. Its totient is φ = 29795082240.

The previous prime is 61410771791. The next prime is 61410771817. The reversal of 61410771808 is 80817701416.

It is a congruent number.

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, 54393388 + ... + 54394516.

It is an arithmetic number, because the mean of its divisors is an integer number (1297437750).

Almost surely, 2^61410771808 is an apocalyptic number.

It is an amenable number.

61410771808 is an abundant number, since it is smaller than the sum of its proper divisors (63143252192).

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

61410771808 is a wasteful number, since it uses less digits than its factorization.

61410771808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 61410771808 in words is "sixty-one billion, four hundred ten million, seven hundred seventy-one thousand, eight hundred eight".