742764738239 has 2 divisors, whose sum is σ = 742764738240. Its totient is φ = 742764738238.

The previous prime is 742764738217. The next prime is 742764738281. The reversal of 742764738239 is 932837467247.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 742764738239 - 2²⁰ = 742763689663 is a prime.

It is a super-2 number, since 2×742764738239² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742764738739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371382369119 + 371382369120.

It is an arithmetic number, because the mean of its divisors is an integer number (371382369120).

Almost surely, 2^742764738239 is an apocalyptic number.

742764738239 is a deficient number, since it is larger than the sum of its proper divisors (1).

742764738239 is an equidigital number, since it uses as much as digits as its factorization.

742764738239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85349376, while the sum is 62.

The spelling of 742764738239 in words is "seven hundred forty-two billion, seven hundred sixty-four million, seven hundred thirty-eight thousand, two hundred thirty-nine".