72931429288 has 16 divisors (see below), whose sum is σ = 141461824500. Its totient is φ = 35208276096.

The previous prime is 72931429273. The next prime is 72931429303. The reversal of 72931429288 is 88292413927.

It is an interprime number because it is at equal distance from previous prime (72931429273) and next prime (72931429303).

It can be written as a sum of positive squares in 2 ways, for example, as 70289674884 + 2641754404 = 265122^2 + 51398^2 .

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, 157179573 + ... + 157180036.

Almost surely, 2^72931429288 is an apocalyptic number.

It is an amenable number.

72931429288 is a deficient number, since it is larger than the sum of its proper divisors (68530395212).

72931429288 is a wasteful number, since it uses less digits than its factorization.

72931429288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314359644 (or 314359640 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The spelling of 72931429288 in words is "seventy-two billion, nine hundred thirty-one million, four hundred twenty-nine thousand, two hundred eighty-eight".