28625416340 has 96 divisors (see below), whose sum is σ = 68000446080. Its totient is φ = 10056904704.

The previous prime is 28625416331. The next prime is 28625416349. The reversal of 28625416340 is 4361452682.

It is an interprime number because it is at equal distance from previous prime (28625416331) and next prime (28625416349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28625416349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399752 + ... + 465888.

It is an arithmetic number, because the mean of its divisors is an integer number (708337980).

Almost surely, 2^28625416340 is an apocalyptic number.

28625416340 is a gapful number since it is divisible by the number (20) 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 28625416340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34000223040).

28625416340 is an abundant number, since it is smaller than the sum of its proper divisors (39375029740).

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

28625416340 is a wasteful number, since it uses less digits than its factorization.

28625416340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66249 (or 66247 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 28625416340 in words is "twenty-eight billion, six hundred twenty-five million, four hundred sixteen thousand, three hundred forty".