19000091630 has 32 divisors (see below), whose sum is σ = 37826387424. Its totient is φ = 6825810816.

The previous prime is 19000091573. The next prime is 19000091647. The reversal of 19000091630 is 3619000091.

It is a super-2 number, since 2×19000091630² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19000091593 and 19000091602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970252 + ... + 1979871.

It is an arithmetic number, because the mean of its divisors is an integer number (1182074607).

Almost surely, 2^19000091630 is an apocalyptic number.

19000091630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19000091630 is a deficient number, since it is larger than the sum of its proper divisors (18826295794).

19000091630 is a wasteful number, since it uses less digits than its factorization.

19000091630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950180.

The product of its (nonzero) digits is 1458, while the sum is 29.

The spelling of 19000091630 in words is "nineteen billion, ninety-one thousand, six hundred thirty".