61886831110 has 64 divisors (see below), whose sum is σ = 127108626624. Its totient is φ = 21491712000.

The previous prime is 61886831107. The next prime is 61886831129. The reversal of 61886831110 is 1113868816.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3529465 + ... + 3546955.

It is an arithmetic number, because the mean of its divisors is an integer number (1986072291).

Almost surely, 2^61886831110 is an apocalyptic number.

61886831110 is an abundant number, since it is smaller than the sum of its proper divisors (65221795514).

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

61886831110 is a wasteful number, since it uses less digits than its factorization.

61886831110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19129.

The product of its (nonzero) digits is 55296, while the sum is 43.

The spelling of 61886831110 in words is "sixty-one billion, eight hundred eighty-six million, eight hundred thirty-one thousand, one hundred ten".