425978957683 has 4 divisors (see below), whose sum is σ = 425980351480. Its totient is φ = 425977563888.

The previous prime is 425978957557. The next prime is 425978957689. The reversal of 425978957683 is 386759879524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 425978957683 - 2⁹ = 425978957171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425978957689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18018 + ... + 923191.

It is an arithmetic number, because the mean of its divisors is an integer number (106495087870).

Almost surely, 2^425978957683 is an apocalyptic number.

425978957683 is a deficient number, since it is larger than the sum of its proper divisors (1393797).

425978957683 is an equidigital number, since it uses as much as digits as its factorization.

425978957683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393796.

The product of its digits is 914457600, while the sum is 73.

The spelling of 425978957683 in words is "four hundred twenty-five billion, nine hundred seventy-eight million, nine hundred fifty-seven thousand, six hundred eighty-three".