49129890220 has 24 divisors (see below), whose sum is σ = 103231497600. Its totient is φ = 19640769792.

The previous prime is 49129890217. The next prime is 49129890221. The reversal of 49129890220 is 2209892194.

49129890220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49129890220² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49129890221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663085 + ... + 733444.

It is an arithmetic number, because the mean of its divisors is an integer number (4301312400).

Almost surely, 2^49129890220 is an apocalyptic number.

It is an amenable number.

49129890220 is an abundant number, since it is smaller than the sum of its proper divisors (54101607380).

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

49129890220 is a wasteful number, since it uses less digits than its factorization.

49129890220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398297 (or 1398295 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 49129890220 in words is "forty-nine billion, one hundred twenty-nine million, eight hundred ninety thousand, two hundred twenty".