2630991198 has 32 divisors (see below), whose sum is σ = 5760813312. Its totient is φ = 794427200.

The previous prime is 2630991169. The next prime is 2630991217. The reversal of 2630991198 is 8911990362.

It is a super-2 number, since 2×2630991198² = 13844229367906950408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52386 + ... + 89477.

It is an arithmetic number, because the mean of its divisors is an integer number (180025416).

Almost surely, 2^2630991198 is an apocalyptic number.

2630991198 is an abundant number, since it is smaller than the sum of its proper divisors (3129822114).

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

2630991198 is a wasteful number, since it uses less digits than its factorization.

2630991198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142160.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 2630991198 is about 51293.1886121345. The cubic root of 2630991198 is about 1380.5107676624.

The spelling of 2630991198 in words is "two billion, six hundred thirty million, nine hundred ninety-one thousand, one hundred ninety-eight".