7742936231 has 2 divisors, whose sum is σ = 7742936232. Its totient is φ = 7742936230.

The previous prime is 7742936197. The next prime is 7742936323. The reversal of 7742936231 is 1326392477.

It is a weak prime.

It is an emirp because it is prime and its reverse (1326392477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7742936231 - 2³⁰ = 6669194407 is a prime.

It is a super-2 number, since 2×7742936231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7742936431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3871468115 + 3871468116.

It is an arithmetic number, because the mean of its divisors is an integer number (3871468116).

Almost surely, 2^7742936231 is an apocalyptic number.

7742936231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7742936231 is an equidigital number, since it uses as much as digits as its factorization.

7742936231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 44.

The square root of 7742936231 is about 87993.9556503741. The cubic root of 7742936231 is about 1978.3443826812.

The spelling of 7742936231 in words is "seven billion, seven hundred forty-two million, nine hundred thirty-six thousand, two hundred thirty-one".