71923617292 has 12 divisors (see below), whose sum is σ = 125899769520. Its totient is φ = 35952254576.

The previous prime is 71923617251. The next prime is 71923617301. The reversal of 71923617292 is 29271632917.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371567 + ... + 2401702.

It is an arithmetic number, because the mean of its divisors is an integer number (10491647460).

Almost surely, 2^71923617292 is an apocalyptic number.

It is an amenable number.

71923617292 is a deficient number, since it is larger than the sum of its proper divisors (53976152228).

71923617292 is a wasteful number, since it uses less digits than its factorization.

71923617292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777040 (or 4777038 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The spelling of 71923617292 in words is "seventy-one billion, nine hundred twenty-three million, six hundred seventeen thousand, two hundred ninety-two".