425143250621 has 8 divisors (see below), whose sum is σ = 447534058080. Its totient is φ = 402753927888.

The previous prime is 425143250603. The next prime is 425143250633. The reversal of 425143250621 is 126052341524.

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

It is not a de Polignac number, because 425143250621 - 2⁶ = 425143250557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425143258621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242630 + ... + 953496.

It is an arithmetic number, because the mean of its divisors is an integer number (55941757260).

Almost surely, 2^425143250621 is an apocalyptic number.

It is an amenable number.

425143250621 is a deficient number, since it is larger than the sum of its proper divisors (22390807459).

425143250621 is a wasteful number, since it uses less digits than its factorization.

425143250621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742363.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 425143250621 in words is "four hundred twenty-five billion, one hundred forty-three million, two hundred fifty thousand, six hundred twenty-one".