425899998524 has 192 divisors, whose sum is σ = 1063070131200. Its totient is φ = 143775129600.

The previous prime is 425899998521. The next prime is 425899998571.

425899998524 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425899998521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8266604 + ... + 8317964.

It is an arithmetic number, because the mean of its divisors is an integer number (5536823600).

Almost surely, 2^425899998524 is an apocalyptic number.

425899998524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425899998524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531535065600).

425899998524 is an abundant number, since it is smaller than the sum of its proper divisors (637170132676).

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

425899998524 is a wasteful number, since it uses less digits than its factorization.

425899998524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51524 (or 51522 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 74.

The spelling of 425899998524 in words is "four hundred twenty-five billion, eight hundred ninety-nine million, nine hundred ninety-eight thousand, five hundred twenty-four".