2100598919 has 2 divisors, whose sum is σ = 2100598920. Its totient is φ = 2100598918.

The previous prime is 2100598859. The next prime is 2100598949. The reversal of 2100598919 is 9198950012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100598919 - 2⁸ = 2100598663 is a prime.

It is a super-2 number, since 2×2100598919² = 8825031637007937122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2100598919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100598949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050299459 + 1050299460.

It is an arithmetic number, because the mean of its divisors is an integer number (1050299460).

Almost surely, 2^2100598919 is an apocalyptic number.

2100598919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100598919 is an equidigital number, since it uses as much as digits as its factorization.

2100598919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 2100598919 is about 45832.2912257286. The cubic root of 2100598919 is about 1280.7008936053.

The spelling of 2100598919 in words is "two billion, one hundred million, five hundred ninety-eight thousand, nine hundred nineteen".