63859429490 has 32 divisors (see below), whose sum is σ = 115441260480. Its totient is φ = 25434129600.

The previous prime is 63859429477. The next prime is 63859429519. The reversal of 63859429490 is 9492495836.

63859429490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2672516 + ... + 2696304.

It is an arithmetic number, because the mean of its divisors is an integer number (3607539390).

Almost surely, 2^63859429490 is an apocalyptic number.

63859429490 is a deficient number, since it is larger than the sum of its proper divisors (51581830990).

63859429490 is a wasteful number, since it uses less digits than its factorization.

63859429490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24938.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 63859429490 in words is "sixty-three billion, eight hundred fifty-nine million, four hundred twenty-nine thousand, four hundred ninety".