101139781736 has 32 divisors (see below), whose sum is σ = 216739160640. Its totient is φ = 43343409408.

The previous prime is 101139781697. The next prime is 101139781741. The reversal of 101139781736 is 637187931101.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1551920 + ... + 1615776.

It is an arithmetic number, because the mean of its divisors is an integer number (6773098770).

Almost surely, 2^101139781736 is an apocalyptic number.

It is an amenable number.

101139781736 is an abundant number, since it is smaller than the sum of its proper divisors (115599378904).

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

101139781736 is a wasteful number, since it uses less digits than its factorization.

101139781736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92153 (or 92149 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 101139781736 in words is "one hundred one billion, one hundred thirty-nine million, seven hundred eighty-one thousand, seven hundred thirty-six".