49847578212 has 96 divisors (see below), whose sum is σ = 123712046080. Its totient is φ = 15577660800.

The previous prime is 49847578189. The next prime is 49847578259. The reversal of 49847578212 is 21287574894.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9533943 + ... + 9539169.

Almost surely, 2^49847578212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49847578212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61856023040).

49847578212 is an abundant number, since it is smaller than the sum of its proper divisors (73864467868).

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

49847578212 is a wasteful number, since it uses less digits than its factorization.

49847578212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5679 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 57.

The spelling of 49847578212 in words is "forty-nine billion, eight hundred forty-seven million, five hundred seventy-eight thousand, two hundred twelve".