19901790114 has 32 divisors (see below), whose sum is σ = 40128086016. Its totient is φ = 6580048080.

The previous prime is 19901790107. The next prime is 19901790119. The reversal of 19901790114 is 41109710991.

It is not an unprimeable number, because it can be changed into a prime (19901790119) 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 15 ways as a sum of consecutive naturals, for example, 372639 + ... + 422685.

It is an arithmetic number, because the mean of its divisors is an integer number (1254002688).

Almost surely, 2^19901790114 is an apocalyptic number.

19901790114 is an abundant number, since it is smaller than the sum of its proper divisors (20226295902).

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

19901790114 is a wasteful number, since it uses less digits than its factorization.

19901790114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50590.

The product of its (nonzero) digits is 20412, while the sum is 42.

The spelling of 19901790114 in words is "nineteen billion, nine hundred one million, seven hundred ninety thousand, one hundred fourteen".