49699871136 has 120 divisors (see below), whose sum is σ = 147317829120. Its totient is φ = 16436068992.

The previous prime is 49699871131. The next prime is 49699871183. The reversal of 49699871136 is 63117899694.

49699871136 is a `hidden beast` number, since 496 + 9 + 9 + 8 + 7 + 1 + 136 = 666.

49699871136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (49699871131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 253695 + ... + 404673.

It is an arithmetic number, because the mean of its divisors is an integer number (1227648576).

Almost surely, 2^49699871136 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 49699871136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73658914560).

49699871136 is an abundant number, since it is smaller than the sum of its proper divisors (97617957984).

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

49699871136 is a wasteful number, since it uses less digits than its factorization.

49699871136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151128 (or 151111 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 49699871136 in words is "forty-nine billion, six hundred ninety-nine million, eight hundred seventy-one thousand, one hundred thirty-six".