63930395730 has 128 divisors (see below), whose sum is σ = 167565312000. Its totient is φ = 15550444800.

The previous prime is 63930395707. The next prime is 63930395731. The reversal of 63930395730 is 3759303936.

It is a self number, because there is not a number n which added to its sum of digits gives 63930395730.

It is not an unprimeable number, because it can be changed into a prime (63930395731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3507240 + ... + 3525420.

It is an arithmetic number, because the mean of its divisors is an integer number (1309104000).

Almost surely, 2^63930395730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63930395730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83782656000).

63930395730 is an abundant number, since it is smaller than the sum of its proper divisors (103634916270).

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

63930395730 is a wasteful number, since it uses less digits than its factorization.

63930395730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18440.

The product of its (nonzero) digits is 1377810, while the sum is 48.

The spelling of 63930395730 in words is "sixty-three billion, nine hundred thirty million, three hundred ninety-five thousand, seven hundred thirty".