48966995781 has 24 divisors (see below), whose sum is σ = 77178535200. Its totient is φ = 29669882400.

The previous prime is 48966995743. The next prime is 48966995839. The reversal of 48966995781 is 18759966984.

48966995781 is a `hidden beast` number, since 48 + 9 + 6 + 6 + 9 + 9 + 578 + 1 = 666.

48966995781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48966995781 - 2³⁰ = 47893253957 is a prime.

It is a super-2 number, since 2×48966995781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48966895781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373686 + ... + 487416.

It is an arithmetic number, because the mean of its divisors is an integer number (3215772300).

Almost surely, 2^48966995781 is an apocalyptic number.

It is an amenable number.

48966995781 is a deficient number, since it is larger than the sum of its proper divisors (28211539419).

48966995781 is a wasteful number, since it uses less digits than its factorization.

48966995781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118097 (or 118094 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 72.

The spelling of 48966995781 in words is "forty-eight billion, nine hundred sixty-six million, nine hundred ninety-five thousand, seven hundred eighty-one".