743485409531 has 2 divisors, whose sum is σ = 743485409532. Its totient is φ = 743485409530.

The previous prime is 743485409489. The next prime is 743485409543. The reversal of 743485409531 is 135904584347.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 743485409531 - 2¹⁰ = 743485408507 is a prime.

It is a super-2 number, since 2×743485409531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (743485409581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371742704765 + 371742704766.

It is an arithmetic number, because the mean of its divisors is an integer number (371742704766).

Almost surely, 2^743485409531 is an apocalyptic number.

743485409531 is a deficient number, since it is larger than the sum of its proper divisors (1).

743485409531 is an equidigital number, since it uses as much as digits as its factorization.

743485409531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 743485409531 in words is "seven hundred forty-three billion, four hundred eighty-five million, four hundred nine thousand, five hundred thirty-one".