61143927080 has 64 divisors (see below), whose sum is σ = 139192560000. Its totient is φ = 24170768640.

The previous prime is 61143927077. The next prime is 61143927107. The reversal of 61143927080 is 8072934116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2041010 + ... + 2070750.

It is an arithmetic number, because the mean of its divisors is an integer number (2174883750).

Almost surely, 2^61143927080 is an apocalyptic number.

It is an amenable number.

61143927080 is an abundant number, since it is smaller than the sum of its proper divisors (78048632920).

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

61143927080 is a wasteful number, since it uses less digits than its factorization.

61143927080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30354 (or 30350 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 61143927080 in words is "sixty-one billion, one hundred forty-three million, nine hundred twenty-seven thousand, eighty".