425249957139 has 8 divisors (see below), whose sum is σ = 647999934720. Its totient is φ = 242999975496.

The previous prime is 425249957131. The next prime is 425249957159. The reversal of 425249957139 is 931759942524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425249957139 - 2³ = 425249957131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425249957131) 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 7 ways as a sum of consecutive naturals, for example, 10124998959 + ... + 10124999000.

It is an arithmetic number, because the mean of its divisors is an integer number (80999991840).

Almost surely, 2^425249957139 is an apocalyptic number.

425249957139 is a deficient number, since it is larger than the sum of its proper divisors (222749977581).

425249957139 is a wasteful number, since it uses less digits than its factorization.

425249957139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20249997969.

The product of its digits is 24494400, while the sum is 60.

The spelling of 425249957139 in words is "four hundred twenty-five billion, two hundred forty-nine million, nine hundred fifty-seven thousand, one hundred thirty-nine".