7278328572 has 24 divisors (see below), whose sum is σ = 16987762176. Its totient is φ = 2425395888.

The previous prime is 7278328553. The next prime is 7278328573. The reversal of 7278328572 is 2758238727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7278328573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45868 + ... + 129075.

It is an arithmetic number, because the mean of its divisors is an integer number (707823424).

Almost surely, 2^7278328572 is an apocalyptic number.

It is an amenable number.

7278328572 is an abundant number, since it is smaller than the sum of its proper divisors (9709433604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7278328572 is a wasteful number, since it uses less digits than its factorization.

7278328572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178417 (or 178415 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 51.

The square root of 7278328572 is about 85313.1207493900. The cubic root of 7278328572 is about 1937.9558810823.

The spelling of 7278328572 in words is "seven billion, two hundred seventy-eight million, three hundred twenty-eight thousand, five hundred seventy-two".