47915896609 has 9 divisors (see below), whose sum is σ = 55740682641. Its totient is φ = 41069455140.

The previous prime is 47915896603. The next prime is 47915896663. The reversal of 47915896609 is 90669851974.

The square root of 47915896609 is 218897.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 47915896609 - 2¹⁵ = 47915863841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47915896603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1516644 + ... + 1547914.

Almost surely, 2^47915896609 is an apocalyptic number.

47915896609 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47915896609 is the 218897-th square number.

47915896609 is the 109449-th centered octagonal number.

It is an amenable number.

47915896609 is a deficient number, since it is larger than the sum of its proper divisors (7824786032).

47915896609 is an frugal number, since it uses more digits than its factorization.

47915896609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62556 (or 31278 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 64.

Multiplying 47915896609 by its sum of digits (64), we get a square (3066617382976 = 1751176²).

The spelling of 47915896609 in words is "forty-seven billion, nine hundred fifteen million, eight hundred ninety-six thousand, six hundred nine".