425887404788523 has 16 divisors (see below), whose sum is σ = 598459485697920. Its totient is φ = 268656269063616.

The previous prime is 425887404788519. The next prime is 425887404788563. The reversal of 425887404788523 is 325887404788524.

It is a happy number.

It is not a de Polignac number, because 425887404788523 - 2² = 425887404788519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425887404788563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4517310090 + ... + 4517404367.

It is an arithmetic number, because the mean of its divisors is an integer number (37403717856120).

Almost surely, 2^{425887404788523} is an apocalyptic number.

425887404788523 is a deficient number, since it is larger than the sum of its proper divisors (172572080909397).

425887404788523 is a wasteful number, since it uses less digits than its factorization.

425887404788523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034715306.

The product of its (nonzero) digits is 3853516800, while the sum is 75.

Subtracting from 425887404788523 its reverse (325887404788524), we obtain a palindrome (99999999999999).

The spelling of 425887404788523 in words is "four hundred twenty-five trillion, eight hundred eighty-seven billion, four hundred four million, seven hundred eighty-eight thousand, five hundred twenty-three".