48940779681 has 24 divisors (see below), whose sum is σ = 76591326240. Its totient is φ = 29993798016.

The previous prime is 48940779539. The next prime is 48940779691. The reversal of 48940779681 is 18697704984.

48940779681 is a `hidden beast` number, since 4 + 89 + 407 + 79 + 6 + 81 = 666.

It is not a de Polignac number, because 48940779681 - 2¹⁴ = 48940763297 is a prime.

It is a super-2 number, since 2×48940779681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48940779691) 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, 3712891 + ... + 3726048.

It is an arithmetic number, because the mean of its divisors is an integer number (3191305260).

Almost surely, 2^48940779681 is an apocalyptic number.

It is an amenable number.

48940779681 is a deficient number, since it is larger than the sum of its proper divisors (27650546559).

48940779681 is a wasteful number, since it uses less digits than its factorization.

48940779681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7439005 (or 7439002 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 48940779681 in words is "forty-eight billion, nine hundred forty million, seven hundred seventy-nine thousand, six hundred eighty-one".