19291093828 has 24 divisors (see below), whose sum is σ = 35515468800. Its totient is φ = 9155092128.

The previous prime is 19291093817. The next prime is 19291093831. The reversal of 19291093828 is 82839019291.

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, 1402500 + ... + 1416187.

It is an arithmetic number, because the mean of its divisors is an integer number (1479811200).

Almost surely, 2^19291093828 is an apocalyptic number.

It is an amenable number.

19291093828 is a deficient number, since it is larger than the sum of its proper divisors (16224374972).

19291093828 is a wasteful number, since it uses less digits than its factorization.

19291093828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818779 (or 2818777 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 52.

The spelling of 19291093828 in words is "nineteen billion, two hundred ninety-one million, ninety-three thousand, eight hundred twenty-eight".