48720408529 has 9 divisors (see below), whose sum is σ = 52759526043. Its totient is φ = 44970036072.

The previous prime is 48720408497. The next prime is 48720408557. The reversal of 48720408529 is 92580402784.

The square root of 48720408529 is 220727.

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

It can be written as a sum of positive squares in only one way, i.e., 7207161025 + 41513247504 = 84895^2 + 203748^2 .

It is not a de Polignac number, because 48720408529 - 2⁵ = 48720408497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48720408599) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2860962 + ... + 2877940.

Almost surely, 2^48720408529 is an apocalyptic number.

48720408529 is the 220727-th square number.

48720408529 is the 110364-th centered octagonal number.

It is an amenable number.

48720408529 is a deficient number, since it is larger than the sum of its proper divisors (4039117514).

48720408529 is an frugal number, since it uses more digits than its factorization.

48720408529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33984 (or 16992 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

Multiplying 48720408529 by its sum of digits (49), we get a square (2387300017921 = 1545089²).

The spelling of 48720408529 in words is "forty-eight billion, seven hundred twenty million, four hundred eight thousand, five hundred twenty-nine".