71725370144 has 12 divisors (see below), whose sum is σ = 141209322534. Its totient is φ = 35862685056.

The previous prime is 71725370137. The next prime is 71725370159. The reversal of 71725370144 is 44107352717.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64319046544 + 7406323600 = 253612^2 + 86060^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120708877 + ... + 1120708940.

Almost surely, 2^71725370144 is an apocalyptic number.

It is an amenable number.

71725370144 is a deficient number, since it is larger than the sum of its proper divisors (69483952390).

71725370144 is a wasteful number, since it uses less digits than its factorization.

71725370144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241417827 (or 2241417819 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 71725370144 in words is "seventy-one billion, seven hundred twenty-five million, three hundred seventy thousand, one hundred forty-four".