19908314461 has 16 divisors (see below), whose sum is σ = 23392994560. Its totient is φ = 16584808320.

The previous prime is 19908314453. The next prime is 19908314467. The reversal of 19908314461 is 16441380991.

It is a cyclic number.

It is not a de Polignac number, because 19908314461 - 2³ = 19908314453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19908314467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196201 + ... + 279841.

It is an arithmetic number, because the mean of its divisors is an integer number (1462062160).

Almost surely, 2^19908314461 is an apocalyptic number.

It is an amenable number.

19908314461 is a deficient number, since it is larger than the sum of its proper divisors (3484680099).

19908314461 is an equidigital number, since it uses as much as digits as its factorization.

19908314461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84604.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 19908314461 in words is "nineteen billion, nine hundred eight million, three hundred fourteen thousand, four hundred sixty-one".