63640701300 has 144 divisors (see below), whose sum is σ = 201709214784. Its totient is φ = 15363840000.

The previous prime is 63640701283. The next prime is 63640701301. The reversal of 63640701300 is 310704636.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63640701301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 755290 + ... + 835310.

It is an arithmetic number, because the mean of its divisors is an integer number (1400758436).

Almost surely, 2^63640701300 is an apocalyptic number.

63640701300 is a gapful number since it is divisible by the number (60) 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 63640701300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100854607392).

63640701300 is an abundant number, since it is smaller than the sum of its proper divisors (138068513484).

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

63640701300 is a wasteful number, since it uses less digits than its factorization.

63640701300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80290 (or 80283 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The spelling of 63640701300 in words is "sixty-three billion, six hundred forty million, seven hundred one thousand, three hundred".