71429312956 has 36 divisors (see below), whose sum is σ = 133185694600. Its totient is φ = 33427042848.

The previous prime is 71429312909. The next prime is 71429312957. The reversal of 71429312956 is 65921392417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429312957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455350 + ... + 591778.

Almost surely, 2^71429312956 is an apocalyptic number.

71429312956 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71429312956 is a deficient number, since it is larger than the sum of its proper divisors (61756381644).

71429312956 is a wasteful number, since it uses less digits than its factorization.

71429312956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136618 (or 136533 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The spelling of 71429312956 in words is "seventy-one billion, four hundred twenty-nine million, three hundred twelve thousand, nine hundred fifty-six".