673862315531 has 2 divisors, whose sum is σ = 673862315532. Its totient is φ = 673862315530.

The previous prime is 673862315447. The next prime is 673862315593. The reversal of 673862315531 is 135513268376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673862315531 - 2¹⁰ = 673862314507 is a prime.

It is a super-2 number, since 2×673862315531² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 673862315531.

It is not a weakly prime, because it can be changed into another prime (673862315131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336931157765 + 336931157766.

It is an arithmetic number, because the mean of its divisors is an integer number (336931157766).

Almost surely, 2^673862315531 is an apocalyptic number.

673862315531 is a deficient number, since it is larger than the sum of its proper divisors (1).

673862315531 is an equidigital number, since it uses as much as digits as its factorization.

673862315531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 50.

The spelling of 673862315531 in words is "six hundred seventy-three billion, eight hundred sixty-two million, three hundred fifteen thousand, five hundred thirty-one".