2101929550 has 48 divisors (see below), whose sum is σ = 4476677760. Its totient is φ = 719278560.

The previous prime is 2101929547. The next prime is 2101929551. The reversal of 2101929550 is 559291012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101929551) by changing a digit.

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, 185961 + ... + 196939.

It is an arithmetic number, because the mean of its divisors is an integer number (93264120).

Almost surely, 2^2101929550 is an apocalyptic number.

2101929550 is an abundant number, since it is smaller than the sum of its proper divisors (2374748210).

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

2101929550 is a wasteful number, since it uses less digits than its factorization.

2101929550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11545 (or 11540 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 2101929550 is about 45846.8052322078. The cubic root of 2101929550 is about 1280.9712578636.

The spelling of 2101929550 in words is "two billion, one hundred one million, nine hundred twenty-nine thousand, five hundred fifty".