19899460001 has 2 divisors, whose sum is σ = 19899460002. Its totient is φ = 19899460000.

The previous prime is 19899459989. The next prime is 19899460013. The reversal of 19899460001 is 10006499891.

It is a balanced prime because it is at equal distance from previous prime (19899459989) and next prime (19899460013).

It can be written as a sum of positive squares in only one way, i.e., 19543760401 + 355699600 = 139799^2 + 18860^2 .

It is a cyclic number.

It is not a de Polignac number, because 19899460001 - 2¹⁴ = 19899443617 is a prime.

It is not a weakly prime, because it can be changed into another prime (19899460501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9949730000 + 9949730001.

It is an arithmetic number, because the mean of its divisors is an integer number (9949730001).

Almost surely, 2^19899460001 is an apocalyptic number.

It is an amenable number.

19899460001 is a deficient number, since it is larger than the sum of its proper divisors (1).

19899460001 is an equidigital number, since it uses as much as digits as its factorization.

19899460001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 47.

The spelling of 19899460001 in words is "nineteen billion, eight hundred ninety-nine million, four hundred sixty thousand, one".