72332735787 has 36 divisors (see below), whose sum is σ = 119525660800. Its totient is φ = 41894053632.

The previous prime is 72332735777. The next prime is 72332735803. The reversal of 72332735787 is 78753723327.

It is a happy number.

It is not a de Polignac number, because 72332735787 - 2⁴ = 72332735771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72332735737) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1035787 + ... + 1103412.

Almost surely, 2^72332735787 is an apocalyptic number.

72332735787 is a deficient number, since it is larger than the sum of its proper divisors (47192925013).

72332735787 is a wasteful number, since it uses less digits than its factorization.

72332735787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139252 (or 2139232 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 54.

The spelling of 72332735787 in words is "seventy-two billion, three hundred thirty-two million, seven hundred thirty-five thousand, seven hundred eighty-seven".