19273457650 has 24 divisors (see below), whose sum is σ = 36353548224. Its totient is φ = 7600798800.

The previous prime is 19273457531. The next prime is 19273457677. The reversal of 19273457650 is 5675437291.

It is a junction number, because it is equal to n+sod(n) for n = 19273457594 and 19273457603.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2711022 + ... + 2718121.

It is an arithmetic number, because the mean of its divisors is an integer number (1514731176).

Almost surely, 2^19273457650 is an apocalyptic number.

19273457650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19273457650 is a deficient number, since it is larger than the sum of its proper divisors (17080090574).

19273457650 is a wasteful number, since it uses less digits than its factorization.

19273457650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429226 (or 5429221 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 19273457650 in words is "nineteen billion, two hundred seventy-three million, four hundred fifty-seven thousand, six hundred fifty".