425508838437 has 16 divisors (see below), whose sum is σ = 597586626560. Its totient is φ = 268570866672.

The previous prime is 425508838423. The next prime is 425508838483. The reversal of 425508838437 is 734838805524.

It is a de Polignac number, because none of the positive numbers 2^k-425508838437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425508838487) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2292643 + ... + 2471280.

It is an arithmetic number, because the mean of its divisors is an integer number (37349164160).

Almost surely, 2^425508838437 is an apocalyptic number.

It is an amenable number.

425508838437 is a deficient number, since it is larger than the sum of its proper divisors (172077788123).

425508838437 is a wasteful number, since it uses less digits than its factorization.

425508838437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765512.

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 425508838437 in words is "four hundred twenty-five billion, five hundred eight million, eight hundred thirty-eight thousand, four hundred thirty-seven".