49185738828 has 36 divisors (see below), whose sum is σ = 124392996000. Its totient is φ = 16387020576.

The previous prime is 49185738827. The next prime is 49185738857. The reversal of 49185738828 is 82883758194.

49185738828 is a `hidden beast` number, since 49 + 18 + 573 + 8 + 8 + 2 + 8 = 666.

49185738828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (49185738821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269775 + ... + 413702.

It is an arithmetic number, because the mean of its divisors is an integer number (3455361000).

Almost surely, 2^49185738828 is an apocalyptic number.

It is an amenable number.

49185738828 is an abundant number, since it is smaller than the sum of its proper divisors (75207257172).

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

49185738828 is a wasteful number, since it uses less digits than its factorization.

49185738828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685486 (or 685481 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 49185738828 in words is "forty-nine billion, one hundred eighty-five million, seven hundred thirty-eight thousand, eight hundred twenty-eight".