48263256721 has 3 divisors (see below), whose sum is σ = 48263476411. Its totient is φ = 48263037032.

The previous prime is 48263256689. The next prime is 48263256749. The reversal of 48263256721 is 12765236284.

The square root of 48263256721 is 219689.

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 can be written as a sum of positive squares in only one way, i.e., 46867487121 + 1395769600 = 216489^2 + 37360^2 .

It is not a de Polignac number, because 48263256721 - 2⁵ = 48263256689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48263256761) 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, 109845 + ... + 329533.

Almost surely, 2^48263256721 is an apocalyptic number.

48263256721 is the 219689-th square number.

48263256721 is the 109845-th centered octagonal number.

It is an amenable number.

48263256721 is a deficient number, since it is larger than the sum of its proper divisors (219690).

48263256721 is an frugal number, since it uses more digits than its factorization.

48263256721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439378 (or 219689 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The spelling of 48263256721 in words is "forty-eight billion, two hundred sixty-three million, two hundred fifty-six thousand, seven hundred twenty-one".