425508338385 has 48 divisors (see below), whose sum is σ = 794349751104. Its totient is φ = 209463221376.

The previous prime is 425508338377. The next prime is 425508338393. The reversal of 425508338385 is 583833805524.

425508338385 is a `hidden beast` number, since 4 + 2 + 550 + 8 + 3 + 3 + 8 + 3 + 85 = 666.

It is an interprime number because it is at equal distance from previous prime (425508338377) and next prime (425508338393).

It is not a de Polignac number, because 425508338385 - 2³ = 425508338377 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 9221742 + ... + 9267768.

It is an arithmetic number, because the mean of its divisors is an integer number (16548953148).

Almost surely, 2^425508338385 is an apocalyptic number.

425508338385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425508338385 is a deficient number, since it is larger than the sum of its proper divisors (368841412719).

425508338385 is a wasteful number, since it uses less digits than its factorization.

425508338385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61854 (or 61851 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 425508338385 in words is "four hundred twenty-five billion, five hundred eight million, three hundred thirty-eight thousand, three hundred eighty-five".