19467404797 has 2 divisors, whose sum is σ = 19467404798. Its totient is φ = 19467404796.

The previous prime is 19467404779. The next prime is 19467404819. The reversal of 19467404797 is 79740476491.

Together with previous prime (19467404779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14830611961 + 4636792836 = 121781^2 + 68094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19467404797 is a prime.

It is a super-2 number, since 2×19467404797² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19467404897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9733702398 + 9733702399.

It is an arithmetic number, because the mean of its divisors is an integer number (9733702399).

Almost surely, 2^19467404797 is an apocalyptic number.

It is an amenable number.

19467404797 is a deficient number, since it is larger than the sum of its proper divisors (1).

19467404797 is an equidigital number, since it uses as much as digits as its factorization.

19467404797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 19467404797 in words is "nineteen billion, four hundred sixty-seven million, four hundred four thousand, seven hundred ninety-seven".