48985640929 has 3 divisors (see below), whose sum is σ = 48985862257. Its totient is φ = 48985419602.

The previous prime is 48985640909. The next prime is 48985640969. The reversal of 48985640929 is 92904658984.

The square root of 48985640929 is 221327.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 48985640929 - 2³¹ = 46838157281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48985640909) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 110664 + ... + 331990.

Almost surely, 2^48985640929 is an apocalyptic number.

48985640929 is the 221327-th square number.

48985640929 is the 110664-th centered octagonal number.

It is an amenable number.

48985640929 is a deficient number, since it is larger than the sum of its proper divisors (221328).

48985640929 is an frugal number, since it uses more digits than its factorization.

48985640929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442654 (or 221327 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 64.

Multiplying 48985640929 by its sum of digits (64), we get a square (3135081019456 = 1770616²).

The spelling of 48985640929 in words is "forty-eight billion, nine hundred eighty-five million, six hundred forty thousand, nine hundred twenty-nine".