19435916630 has 16 divisors (see below), whose sum is σ = 37675777104. Its totient is φ = 7176338400.

The previous prime is 19435916629. The next prime is 19435916657. The reversal of 19435916630 is 3661953491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74753396 + ... + 74753655.

It is an arithmetic number, because the mean of its divisors is an integer number (2354736069).

Almost surely, 2^19435916630 is an apocalyptic number.

19435916630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19435916630 is a deficient number, since it is larger than the sum of its proper divisors (18239860474).

19435916630 is a wasteful number, since it uses less digits than its factorization.

19435916630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149507071.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 19435916630 in words is "nineteen billion, four hundred thirty-five million, nine hundred sixteen thousand, six hundred thirty".