49897469952 has 288 divisors, whose sum is σ = 157854977280. Its totient is φ = 15058944000.

The previous prime is 49897469929. The next prime is 49897469987. The reversal of 49897469952 is 25996479894.

49897469952 is a `hidden beast` number, since 498 + 9 + 7 + 46 + 9 + 95 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×49897469952² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87385827 + ... + 87386397.

It is an arithmetic number, because the mean of its divisors is an integer number (548107560).

Almost surely, 2^49897469952 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 49897469952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78927488640).

49897469952 is an abundant number, since it is smaller than the sum of its proper divisors (107957507328).

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

49897469952 is a wasteful number, since it uses less digits than its factorization.

49897469952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1018 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 72.

The spelling of 49897469952 in words is "forty-nine billion, eight hundred ninety-seven million, four hundred sixty-nine thousand, nine hundred fifty-two".