7139745528 has 32 divisors (see below), whose sum is σ = 18033383760. Its totient is φ = 2355379200.

The previous prime is 7139745467. The next prime is 7139745541. The reversal of 7139745528 is 8255479317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531123 + ... + 1535778.

Almost surely, 2^7139745528 is an apocalyptic number.

It is an amenable number.

7139745528 is an abundant number, since it is smaller than the sum of its proper divisors (10893638232).

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

7139745528 is a wasteful number, since it uses less digits than its factorization.

7139745528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067007 (or 3067003 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 7139745528 is about 84497.0149058533. The cubic root of 7139745528 is about 1925.5770937892.

The spelling of 7139745528 in words is "seven billion, one hundred thirty-nine million, seven hundred forty-five thousand, five hundred twenty-eight".