72435236610736 has 40 divisors (see below), whose sum is σ = 141496683704064. Its totient is φ = 35921088752640.

The previous prime is 72435236610703. The next prime is 72435236610853. The reversal of 72435236610736 is 63701663253427.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

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, 34137235 + ... + 36196978.

Almost surely, 2^{72435236610736} is an apocalyptic number.

It is an amenable number.

72435236610736 is a deficient number, since it is larger than the sum of its proper divisors (69061447093328).

72435236610736 is a wasteful number, since it uses less digits than its factorization.

72435236610736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70334749 (or 70334743 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 55.

The spelling of 72435236610736 in words is "seventy-two trillion, four hundred thirty-five billion, two hundred thirty-six million, six hundred ten thousand, seven hundred thirty-six".