71435720965 has 16 divisors (see below), whose sum is σ = 99348837120. Its totient is φ = 48294570240.

The previous prime is 71435720903. The next prime is 71435720977. The reversal of 71435720965 is 56902753417.

It is not a de Polignac number, because 71435720965 - 2⁹ = 71435720453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14370900 + ... + 14375869.

It is an arithmetic number, because the mean of its divisors is an integer number (6209302320).

Almost surely, 2^71435720965 is an apocalyptic number.

It is an amenable number.

71435720965 is a deficient number, since it is larger than the sum of its proper divisors (27913116155).

71435720965 is a wasteful number, since it uses less digits than its factorization.

71435720965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28746852.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 71435720965 in words is "seventy-one billion, four hundred thirty-five million, seven hundred twenty thousand, nine hundred sixty-five".