19894693760601 has 16 divisors (see below), whose sum is σ = 28948194674688. Its totient is φ = 12053032534800.

The previous prime is 19894693760581. The next prime is 19894693760603. The reversal of 19894693760601 is 10606739649891.

It is not a de Polignac number, because 19894693760601 - 2¹⁵ = 19894693727833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19894693760603) 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, 108847885 + ... + 109030506.

It is an arithmetic number, because the mean of its divisors is an integer number (1809262167168).

Almost surely, 2^{19894693760601} is an apocalyptic number.

19894693760601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19894693760601 is a deficient number, since it is larger than the sum of its proper divisors (9053500914087).

19894693760601 is a wasteful number, since it uses less digits than its factorization.

19894693760601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217881172.

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 19894693760601 in words is "nineteen trillion, eight hundred ninety-four billion, six hundred ninety-three million, seven hundred sixty thousand, six hundred one".