63928633400 has 96 divisors (see below), whose sum is σ = 155544732000. Its totient is φ = 24388953600.

The previous prime is 63928633397. The next prime is 63928633403. The reversal of 63928633400 is 433682936.

It is an interprime number because it is at equal distance from previous prime (63928633397) and next prime (63928633403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63928633403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1585490 + ... + 1625310.

It is an arithmetic number, because the mean of its divisors is an integer number (1620257625).

Almost surely, 2^63928633400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63928633400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77772366000).

63928633400 is an abundant number, since it is smaller than the sum of its proper divisors (91616098600).

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

63928633400 is a wasteful number, since it uses less digits than its factorization.

63928633400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40209 (or 40200 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 63928633400 in words is "sixty-three billion, nine hundred twenty-eight million, six hundred thirty-three thousand, four hundred".