534719781623 has 2 divisors, whose sum is σ = 534719781624. Its totient is φ = 534719781622.

The previous prime is 534719781571. The next prime is 534719781671. The reversal of 534719781623 is 326187917435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 534719781623 - 2¹⁶ = 534719716087 is a prime.

It is a super-3 number, since 3×534719781623³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534719781523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267359890811 + 267359890812.

It is an arithmetic number, because the mean of its divisors is an integer number (267359890812).

Almost surely, 2^534719781623 is an apocalyptic number.

534719781623 is a deficient number, since it is larger than the sum of its proper divisors (1).

534719781623 is an equidigital number, since it uses as much as digits as its factorization.

534719781623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The spelling of 534719781623 in words is "five hundred thirty-four billion, seven hundred nineteen million, seven hundred eighty-one thousand, six hundred twenty-three".