19446538086053 has 32 divisors (see below), whose sum is σ = 21245619763200. Its totient is φ = 17691860534976.

The previous prime is 19446538086043. The next prime is 19446538086061. The reversal of 19446538086053 is 35068083564491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19446538086053 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 (19446538086043) 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, 780377528 + ... + 780402446.

It is an arithmetic number, because the mean of its divisors is an integer number (663925617600).

Almost surely, 2^{19446538086053} is an apocalyptic number.

19446538086053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19446538086053 is a deficient number, since it is larger than the sum of its proper divisors (1799081677147).

19446538086053 is a wasteful number, since it uses less digits than its factorization.

19446538086053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26721.

The product of its (nonzero) digits is 74649600, while the sum is 62.

The spelling of 19446538086053 in words is "nineteen trillion, four hundred forty-six billion, five hundred thirty-eight million, eighty-six thousand, fifty-three".