19454900529 has 12 divisors (see below), whose sum is σ = 26587985168. Its totient is φ = 12653590560.

The previous prime is 19454900471. The next prime is 19454900533. The reversal of 19454900529 is 92500945491.

It is not a de Polignac number, because 19454900529 - 2⁸ = 19454900273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19454900539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1923859 + ... + 1933944.

Almost surely, 2^19454900529 is an apocalyptic number.

It is an amenable number.

19454900529 is a deficient number, since it is larger than the sum of its proper divisors (7133084639).

19454900529 is an equidigital number, since it uses as much as digits as its factorization.

19454900529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857888 (or 3857847 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 19454900529 in words is "nineteen billion, four hundred fifty-four million, nine hundred thousand, five hundred twenty-nine".