61522886881 has 8 divisors (see below), whose sum is σ = 62644551200. Its totient is φ = 60407205408.

The previous prime is 61522886849. The next prime is 61522886917. The reversal of 61522886881 is 18868822516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61522886881 - 2⁵ = 61522886849 is a prime.

It is a super-2 number, since 2×61522886881² (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 (61522886681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474956 + ... + 1516093.

It is an arithmetic number, because the mean of its divisors is an integer number (7830568900).

Almost surely, 2^61522886881 is an apocalyptic number.

It is an amenable number.

61522886881 is a deficient number, since it is larger than the sum of its proper divisors (1121664319).

61522886881 is a wasteful number, since it uses less digits than its factorization.

61522886881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991423.

The product of its digits is 2949120, while the sum is 55.

The spelling of 61522886881 in words is "sixty-one billion, five hundred twenty-two million, eight hundred eighty-six thousand, eight hundred eighty-one".