19070869817 has 2 divisors, whose sum is σ = 19070869818. Its totient is φ = 19070869816.

The previous prime is 19070869799. The next prime is 19070869901. The reversal of 19070869817 is 71896807091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9764601856 + 9306267961 = 98816^2 + 96469^2 .

It is a cyclic number.

It is not a de Polignac number, because 19070869817 - 2¹² = 19070865721 is a prime.

It is a super-2 number, since 2×19070869817² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19070869417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9535434908 + 9535434909.

It is an arithmetic number, because the mean of its divisors is an integer number (9535434909).

Almost surely, 2^19070869817 is an apocalyptic number.

It is an amenable number.

19070869817 is a deficient number, since it is larger than the sum of its proper divisors (1).

19070869817 is an equidigital number, since it uses as much as digits as its factorization.

19070869817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 56.

The spelling of 19070869817 in words is "nineteen billion, seventy million, eight hundred sixty-nine thousand, eight hundred seventeen".