425891510544 has 40 divisors (see below), whose sum is σ = 1135710698752. Its totient is φ = 137384357760.

The previous prime is 425891510543. The next prime is 425891510567. The reversal of 425891510544 is 445015198524.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 425891510493 and 425891510502.

It is not an unprimeable number, because it can be changed into a prime (425891510543) 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, 143107219 + ... + 143110194.

Almost surely, 2^425891510544 is an apocalyptic number.

It is an amenable number.

425891510544 is an abundant number, since it is smaller than the sum of its proper divisors (709819188208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425891510544 is a wasteful number, since it uses less digits than its factorization.

425891510544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286217455 (or 286217449 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 425891510544 in words is "four hundred twenty-five billion, eight hundred ninety-one million, five hundred ten thousand, five hundred forty-four".