71037720126 has 48 divisors (see below), whose sum is σ = 156893933664. Its totient is φ = 23221378752.

The previous prime is 71037720107. The next prime is 71037720137. The reversal of 71037720126 is 62102773017.

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 23 ways as a sum of consecutive naturals, for example, 2117455 + ... + 2150741.

It is an arithmetic number, because the mean of its divisors is an integer number (3268623618).

Almost surely, 2^71037720126 is an apocalyptic number.

71037720126 is an abundant number, since it is smaller than the sum of its proper divisors (85856213538).

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

71037720126 is a wasteful number, since it uses less digits than its factorization.

71037720126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35585 (or 35582 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The spelling of 71037720126 in words is "seventy-one billion, thirty-seven million, seven hundred twenty thousand, one hundred twenty-six".