19316140169 has 6 divisors (see below), whose sum is σ = 19413733770. Its totient is φ = 19219034736.

The previous prime is 19316140141. The next prime is 19316140177. The reversal of 19316140169 is 96104161391.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10381164544 + 8934975625 = 101888^2 + 94525^2 .

It is a de Polignac number, because none of the positive numbers 2^k-19316140169 is a prime.

It is a super-2 number, since 2×19316140169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19316140139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204284 + ... + 283485.

It is an arithmetic number, because the mean of its divisors is an integer number (3235622295).

Almost surely, 2^19316140169 is an apocalyptic number.

It is an amenable number.

19316140169 is a deficient number, since it is larger than the sum of its proper divisors (97593601).

19316140169 is an frugal number, since it uses more digits than its factorization.

19316140169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488167 (or 487968 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 19316140169 in words is "nineteen billion, three hundred sixteen million, one hundred forty thousand, one hundred sixty-nine".