426637012747 has 4 divisors (see below), whose sum is σ = 465422195736. Its totient is φ = 387851829760.

The previous prime is 426637012709. The next prime is 426637012777. The reversal of 426637012747 is 747210736624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426637012747 - 2⁷ = 426637012619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426637012747.

It is not an unprimeable number, because it can be changed into a prime (426637012777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19392591478 + ... + 19392591499.

It is an arithmetic number, because the mean of its divisors is an integer number (116355548934).

Almost surely, 2^426637012747 is an apocalyptic number.

426637012747 is a deficient number, since it is larger than the sum of its proper divisors (38785182989).

426637012747 is a wasteful number, since it uses less digits than its factorization.

426637012747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38785182988.

The product of its (nonzero) digits is 2370816, while the sum is 49.

The spelling of 426637012747 in words is "four hundred twenty-six billion, six hundred thirty-seven million, twelve thousand, seven hundred forty-seven".