742661306426 has 8 divisors (see below), whose sum is σ = 1199683648884. Its totient is φ = 342766756800.

The previous prime is 742661306419. The next prime is 742661306459. The reversal of 742661306426 is 624603166247.

It can be written as a sum of positive squares in 2 ways, for example, as 729570514201 + 13090792225 = 854149^2 + 114415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14281948175 + ... + 14281948226.

Almost surely, 2^742661306426 is an apocalyptic number.

742661306426 is a deficient number, since it is larger than the sum of its proper divisors (457022342458).

742661306426 is a wasteful number, since it uses less digits than its factorization.

742661306426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28563896416.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The spelling of 742661306426 in words is "seven hundred forty-two billion, six hundred sixty-one million, three hundred six thousand, four hundred twenty-six".