49805250894 has 128 divisors (see below), whose sum is σ = 130305976320. Its totient is φ = 13803084288.

The previous prime is 49805250889. The next prime is 49805250919.

It is a happy number.

49805250894 is a `hidden beast` number, since 4 + 9 + 80 + 52 + 508 + 9 + 4 = 666.

49805250894 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×49805250894² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 49805250894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4707999 + ... + 4718565.

It is an arithmetic number, because the mean of its divisors is an integer number (1018015440).

Almost surely, 2^49805250894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49805250894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65152988160).

49805250894 is an abundant number, since it is smaller than the sum of its proper divisors (80500725426).

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

49805250894 is a wasteful number, since it uses less digits than its factorization.

49805250894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10959 (or 10953 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 49805250894 in words is "forty-nine billion, eight hundred five million, two hundred fifty thousand, eight hundred ninety-four".