48215618281 has 4 divisors (see below), whose sum is σ = 48218441472. Its totient is φ = 48212795092.

The previous prime is 48215618239. The next prime is 48215618287. The reversal of 48215618281 is 18281651284.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48215618281 - 2¹⁷ = 48215487209 is a prime.

It is a super-2 number, since 2×48215618281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48215618287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385821 + ... + 1420186.

It is an arithmetic number, because the mean of its divisors is an integer number (12054610368).

Almost surely, 2^48215618281 is an apocalyptic number.

It is an amenable number.

48215618281 is a deficient number, since it is larger than the sum of its proper divisors (2823191).

48215618281 is a wasteful number, since it uses less digits than its factorization.

48215618281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823190.

The product of its digits is 245760, while the sum is 46.

The spelling of 48215618281 in words is "forty-eight billion, two hundred fifteen million, six hundred eighteen thousand, two hundred eighty-one".