12638858347910 has 16 divisors (see below), whose sum is σ = 22881447601776. Its totient is φ = 5026320544608.

The previous prime is 12638858347909. The next prime is 12638858347987. The reversal of 12638858347910 is 1974385883621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3652847504 + ... + 3652850963.

It is an arithmetic number, because the mean of its divisors is an integer number (1430090475111).

It is a 1-persistent number, because it is pandigital, but 2⋅12638858347910 = 25277716695820 is not.

Almost surely, 2^{12638858347910} is an apocalyptic number.

12638858347910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12638858347910 is a deficient number, since it is larger than the sum of its proper divisors (10242589253866).

12638858347910 is a wasteful number, since it uses less digits than its factorization.

12638858347910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305698647.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 12638858347910 in words is "twelve trillion, six hundred thirty-eight billion, eight hundred fifty-eight million, three hundred forty-seven thousand, nine hundred ten".