742812782679 has 12 divisors (see below), whose sum is σ = 1170492869832. Its totient is φ = 450189565200.

The previous prime is 742812782669. The next prime is 742812782731. The reversal of 742812782679 is 976287218247.

742812782679 is a `hidden beast` number, since 7 + 428 + 127 + 82 + 6 + 7 + 9 = 666.

It is not a de Polignac number, because 742812782679 - 2⁸ = 742812782423 is a prime.

It is a super-2 number, since 2×742812782679² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742812782659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3751579612 + ... + 3751579809.

It is an arithmetic number, because the mean of its divisors is an integer number (97541072486).

Almost surely, 2^742812782679 is an apocalyptic number.

742812782679 is a deficient number, since it is larger than the sum of its proper divisors (427680087153).

742812782679 is a wasteful number, since it uses less digits than its factorization.

742812782679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503159438 (or 7503159435 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The spelling of 742812782679 in words is "seven hundred forty-two billion, eight hundred twelve million, seven hundred eighty-two thousand, six hundred seventy-nine".