15838914641 has 16 divisors (see below), whose sum is σ = 17431848000. Its totient is φ = 14390559040.

The previous prime is 15838914613. The next prime is 15838914667. The reversal of 15838914641 is 14641983851.

It is a de Polignac number, because none of the positive numbers 2^k-15838914641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15838914641.

It is not an unprimeable number, because it can be changed into a prime (15838914241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3909785 + ... + 3913833.

It is an arithmetic number, because the mean of its divisors is an integer number (1089490500).

Almost surely, 2^15838914641 is an apocalyptic number.

15838914641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15838914641 is a deficient number, since it is larger than the sum of its proper divisors (1592933359).

15838914641 is an equidigital number, since it uses as much as digits as its factorization.

15838914641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021 (or 6999 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The spelling of 15838914641 in words is "fifteen billion, eight hundred thirty-eight million, nine hundred fourteen thousand, six hundred forty-one".