19470753391 has 2 divisors, whose sum is σ = 19470753392. Its totient is φ = 19470753390.

The previous prime is 19470753359. The next prime is 19470753409. The reversal of 19470753391 is 19335707491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19470753391 - 2⁵ = 19470753359 is a prime.

It is a super-2 number, since 2×19470753391² (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 (19470753791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9735376695 + 9735376696.

It is an arithmetic number, because the mean of its divisors is an integer number (9735376696).

Almost surely, 2^19470753391 is an apocalyptic number.

19470753391 is a deficient number, since it is larger than the sum of its proper divisors (1).

19470753391 is an equidigital number, since it uses as much as digits as its factorization.

19470753391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 19470753391 in words is "nineteen billion, four hundred seventy million, seven hundred fifty-three thousand, three hundred ninety-one".