72282773425 has 12 divisors (see below), whose sum is σ = 89710915996. Its totient is φ = 57774427200.

The previous prime is 72282773419. The next prime is 72282773447. The reversal of 72282773425 is 52437728227.

It can be written as a sum of positive squares in 6 ways, for example, as 33366136896 + 38916636529 = 182664^2 + 197273^2 .

It is a de Polignac number, because none of the positive numbers 2^k-72282773425 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1266306 + ... + 1322155.

Almost surely, 2^72282773425 is an apocalyptic number.

It is an amenable number.

72282773425 is a deficient number, since it is larger than the sum of its proper divisors (17428142571).

72282773425 is a wasteful number, since it uses less digits than its factorization.

72282773425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589588 (or 2589583 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 49.

The spelling of 72282773425 in words is "seventy-two billion, two hundred eighty-two million, seven hundred seventy-three thousand, four hundred twenty-five".