19618919270 has 16 divisors (see below), whose sum is σ = 36849448800. Its totient is φ = 7506369024.

The previous prime is 19618919269. The next prime is 19618919321. The reversal of 19618919270 is 7291981691.

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, 42649595 + ... + 42650054.

It is an arithmetic number, because the mean of its divisors is an integer number (2303090550).

Almost surely, 2^19618919270 is an apocalyptic number.

19618919270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19618919270 is a deficient number, since it is larger than the sum of its proper divisors (17230529530).

19618919270 is a wasteful number, since it uses less digits than its factorization.

19618919270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85299679.

The product of its (nonzero) digits is 489888, while the sum is 53.

The spelling of 19618919270 in words is "nineteen billion, six hundred eighteen million, nine hundred nineteen thousand, two hundred seventy".