425334143343431 has 32 divisors (see below), whose sum is σ = 488856431886336. Its totient is φ = 362503650348000.

The previous prime is 425334143343419. The next prime is 425334143343449. The reversal of 425334143343431 is 134343341433524.

It is a de Polignac number, because none of the positive numbers 2^k-425334143343431 is a prime.

It is a super-2 number, since 2×425334143343431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425334143343331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58984068416 + ... + 58984075626.

It is an arithmetic number, because the mean of its divisors is an integer number (15276763496448).

Almost surely, 2^{425334143343431} is an apocalyptic number.

425334143343431 is a deficient number, since it is larger than the sum of its proper divisors (63522288542905).

425334143343431 is a wasteful number, since it uses less digits than its factorization.

425334143343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20723.

The product of its digits is 7464960, while the sum is 47.

Adding to 425334143343431 its reverse (134343341433524), we get a palindrome (559677484776955).

The spelling of 425334143343431 in words is "four hundred twenty-five trillion, three hundred thirty-four billion, one hundred forty-three million, three hundred forty-three thousand, four hundred thirty-one".