71383905946 has 16 divisors (see below), whose sum is σ = 109659080448. Its totient is φ = 34840834000.

The previous prime is 71383905919. The next prime is 71383905953. The reversal of 71383905946 is 64950938317.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474290 + ... + 2502973.

It is an arithmetic number, because the mean of its divisors is an integer number (6853692528).

Almost surely, 2^71383905946 is an apocalyptic number.

71383905946 is a deficient number, since it is larger than the sum of its proper divisors (38275174502).

71383905946 is a wasteful number, since it uses less digits than its factorization.

71383905946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977437.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 71383905946 in words is "seventy-one billion, three hundred eighty-three million, nine hundred five thousand, nine hundred forty-six".