49494745668 has 24 divisors (see below), whose sum is σ = 115504431840. Its totient is φ = 16495864000.

The previous prime is 49494745667. The next prime is 49494745681. The reversal of 49494745668 is 86654749494.

It is a junction number, because it is equal to n+sod(n) for n = 49494745599 and 49494745608.

It is not an unprimeable number, because it can be changed into a prime (49494745667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210558 + ... + 378581.

It is an arithmetic number, because the mean of its divisors is an integer number (4812684660).

Almost surely, 2^49494745668 is an apocalyptic number.

It is an amenable number.

49494745668 is an abundant number, since it is smaller than the sum of its proper divisors (66009686172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49494745668 is a wasteful number, since it uses less digits than its factorization.

49494745668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596147 (or 596145 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 66.

The spelling of 49494745668 in words is "forty-nine billion, four hundred ninety-four million, seven hundred forty-five thousand, six hundred sixty-eight".