49889965470 has 64 divisors (see below), whose sum is σ = 121714306560. Its totient is φ = 13085072000.

The previous prime is 49889965453. The next prime is 49889965471. The reversal of 49889965470 is 7456998894.

It is a junction number, because it is equal to n+sod(n) for n = 49889965395 and 49889965404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49889965471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 864520 + ... + 920420.

It is an arithmetic number, because the mean of its divisors is an integer number (1901786040).

Almost surely, 2^49889965470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49889965470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60857153280).

49889965470 is an abundant number, since it is smaller than the sum of its proper divisors (71824341090).

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

49889965470 is a wasteful number, since it uses less digits than its factorization.

49889965470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56401.

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 49889965470 in words is "forty-nine billion, eight hundred eighty-nine million, nine hundred sixty-five thousand, four hundred seventy".