61008080772 has 12 divisors (see below), whose sum is σ = 142352188496. Its totient is φ = 20336026920.

The previous prime is 61008080747. The next prime is 61008080797. The reversal of 61008080772 is 27708080016.

It is an interprime number because it is at equal distance from previous prime (61008080747) and next prime (61008080797).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×61008080772² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61008080772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542003354 + ... + 2542003377.

Almost surely, 2^61008080772 is an apocalyptic number.

It is an amenable number.

61008080772 is an abundant number, since it is smaller than the sum of its proper divisors (81344107724).

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

61008080772 is a wasteful number, since it uses less digits than its factorization.

61008080772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084006738 (or 5084006736 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The spelling of 61008080772 in words is "sixty-one billion, eight million, eighty thousand, seven hundred seventy-two".