19214900641 has 32 divisors (see below), whose sum is σ = 21090440448. Its totient is φ = 17438054400.

The previous prime is 19214900611. The next prime is 19214900651. The reversal of 19214900641 is 14600941291.

It is a cyclic number.

It is not a de Polignac number, because 19214900641 - 2⁷ = 19214900513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19214900641.

It is not an unprimeable number, because it can be changed into a prime (19214900611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10402380 + ... + 10404226.

It is an arithmetic number, because the mean of its divisors is an integer number (659076264).

Almost surely, 2^19214900641 is an apocalyptic number.

It is an amenable number.

19214900641 is a deficient number, since it is larger than the sum of its proper divisors (1875539807).

19214900641 is a wasteful number, since it uses less digits than its factorization.

19214900641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 19214900641 in words is "nineteen billion, two hundred fourteen million, nine hundred thousand, six hundred forty-one".