742157493593 has 2 divisors, whose sum is σ = 742157493594. Its totient is φ = 742157493592.

The previous prime is 742157493563. The next prime is 742157493611. The reversal of 742157493593 is 395394751247.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741782567824 + 374925769 = 861268^2 + 19363^2 .

It is a cyclic number.

It is not a de Polignac number, because 742157493593 - 2²⁸ = 741889058137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (742157493563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371078746796 + 371078746797.

It is an arithmetic number, because the mean of its divisors is an integer number (371078746797).

Almost surely, 2^742157493593 is an apocalyptic number.

It is an amenable number.

742157493593 is a deficient number, since it is larger than the sum of its proper divisors (1).

742157493593 is an equidigital number, since it uses as much as digits as its factorization.

742157493593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 59.

The spelling of 742157493593 in words is "seven hundred forty-two billion, one hundred fifty-seven million, four hundred ninety-three thousand, five hundred ninety-three".