7159398625 has 16 divisors (see below), whose sum is σ = 8980315344. Its totient is φ = 5698425600.

The previous prime is 7159398613. The next prime is 7159398637. The reversal of 7159398625 is 5268939517.

It is an interprime number because it is at equal distance from previous prime (7159398613) and next prime (7159398637).

It can be written as a sum of positive squares in 8 ways, for example, as 1867709089 + 5291689536 = 43217^2 + 72744^2 .

It is not a de Polignac number, because 7159398625 - 2²⁹ = 6622527713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 120744 + ... + 169993.

It is an arithmetic number, because the mean of its divisors is an integer number (561269709).

Almost surely, 2^7159398625 is an apocalyptic number.

It is an amenable number.

7159398625 is a deficient number, since it is larger than the sum of its proper divisors (1820916719).

7159398625 is a wasteful number, since it uses less digits than its factorization.

7159398625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290949 (or 290939 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 55.

The square root of 7159398625 is about 84613.2296097957. The cubic root of 7159398625 is about 1927.3422773019.

The spelling of 7159398625 in words is "seven billion, one hundred fifty-nine million, three hundred ninety-eight thousand, six hundred twenty-five".