7157215072 has 48 divisors (see below), whose sum is σ = 16803908352. Its totient is φ = 2934011520.

The previous prime is 7157215063. The next prime is 7157215073. The reversal of 7157215072 is 2705127517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157215073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689454 + ... + 699757.

It is an arithmetic number, because the mean of its divisors is an integer number (350081424).

Almost surely, 2^7157215072 is an apocalyptic number.

It is an amenable number.

7157215072 is an abundant number, since it is smaller than the sum of its proper divisors (9646693280).

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

7157215072 is a wasteful number, since it uses less digits than its factorization.

7157215072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389251 (or 1389243 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 37.

The square root of 7157215072 is about 84600.3254840074. The cubic root of 7157215072 is about 1927.1463166190.

The spelling of 7157215072 in words is "seven billion, one hundred fifty-seven million, two hundred fifteen thousand, seventy-two".