7828738572 has 12 divisors (see below), whose sum is σ = 18267056696. Its totient is φ = 2609579520.

The previous prime is 7828738537. The next prime is 7828738591. The reversal of 7828738572 is 2758378287.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7828738572² (a number of 21 digits) contains 22 as substring.

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, 326197429 + ... + 326197452.

Almost surely, 2^7828738572 is an apocalyptic number.

It is an amenable number.

7828738572 is an abundant number, since it is smaller than the sum of its proper divisors (10438318124).

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

7828738572 is a wasteful number, since it uses less digits than its factorization.

7828738572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652394888 (or 652394886 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 57.

The square root of 7828738572 is about 88480.1591996759. The cubic root of 7828738572 is about 1985.6251436161.

The spelling of 7828738572 in words is "seven billion, eight hundred twenty-eight million, seven hundred thirty-eight thousand, five hundred seventy-two".