49999655472 has 320 divisors, whose sum is σ = 153542172672. Its totient is φ = 13888512000.

The previous prime is 49999655471. The next prime is 49999655509. The reversal of 49999655472 is 27455699994.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a junction number, because it is equal to n+sod(n) for n = 49999655397 and 49999655406.

It is not an unprimeable number, because it can be changed into a prime (49999655471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18240022 + ... + 18242762.

Almost surely, 2^49999655472 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 49999655472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76771086336).

49999655472 is an abundant number, since it is smaller than the sum of its proper divisors (103542517200).

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

49999655472 is a wasteful number, since it uses less digits than its factorization.

49999655472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860 (or 2854 counting only the distinct ones).

The product of its digits is 220449600, while the sum is 69.

The spelling of 49999655472 in words is "forty-nine billion, nine hundred ninety-nine million, six hundred fifty-five thousand, four hundred seventy-two".