625454263896 has 256 divisors, whose sum is σ = 2066420367360. Its totient is φ = 152730716160.

The previous prime is 625454263867. The next prime is 625454263901. The reversal of 625454263896 is 698362454526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29740441 + ... + 29761463.

It is an arithmetic number, because the mean of its divisors is an integer number (8071954560).

Almost surely, 2^625454263896 is an apocalyptic number.

625454263896 is a gapful number since it is divisible by the number (66) 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 625454263896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033210183680).

625454263896 is an abundant number, since it is smaller than the sum of its proper divisors (1440966103464).

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

625454263896 is a wasteful number, since it uses less digits than its factorization.

625454263896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22014 (or 22010 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 60.

The spelling of 625454263896 in words is "six hundred twenty-five billion, four hundred fifty-four million, two hundred sixty-three thousand, eight hundred ninety-six".