72746259464 has 16 divisors (see below), whose sum is σ = 136456655100. Its totient is φ = 36357818112.

The previous prime is 72746259463. The next prime is 72746259497. The reversal of 72746259464 is 46495264727.

It can be written as a sum of positive squares in 2 ways, for example, as 71159830564 + 1586428900 = 266758^2 + 39830^2 .

It is not an unprimeable number, because it can be changed into a prime (72746259463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893749 + ... + 1931780.

Almost surely, 2^72746259464 is an apocalyptic number.

It is an amenable number.

72746259464 is a deficient number, since it is larger than the sum of its proper divisors (63710395636).

72746259464 is a wasteful number, since it uses less digits than its factorization.

72746259464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827912 (or 3827908 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 56.

The spelling of 72746259464 in words is "seventy-two billion, seven hundred forty-six million, two hundred fifty-nine thousand, four hundred sixty-four".