425724776747 has 4 divisors (see below), whose sum is σ = 425750709336. Its totient is φ = 425698844160.

The previous prime is 425724776707. The next prime is 425724776753. The reversal of 425724776747 is 747677427524.

It is a happy number.

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 425724776747 - 2¹⁶ = 425724711211 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 425724776747.

It is not an unprimeable number, because it can be changed into a prime (425724776707) 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, 12941654 + ... + 12974507.

It is an arithmetic number, because the mean of its divisors is an integer number (106437677334).

Almost surely, 2^425724776747 is an apocalyptic number.

425724776747 is a deficient number, since it is larger than the sum of its proper divisors (25932589).

425724776747 is a wasteful number, since it uses less digits than its factorization.

425724776747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25932588.

The product of its digits is 129077760, while the sum is 62.

The spelling of 425724776747 in words is "four hundred twenty-five billion, seven hundred twenty-four million, seven hundred seventy-six thousand, seven hundred forty-seven".