10000001986 has 32 divisors (see below), whose sum is σ = 17022176640. Its totient is φ = 4367810304.

The previous prime is 10000001969. The next prime is 10000001989. The reversal of 10000001986 is 68910000001.

It is a self number, because there is not a number n which added to its sum of digits gives 10000001986.

It is not an unprimeable number, because it can be changed into a prime (10000001989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475306 + ... + 495898.

It is an arithmetic number, because the mean of its divisors is an integer number (531943020).

Almost surely, 2^10000001986 is an apocalyptic number.

10000001986 is a deficient number, since it is larger than the sum of its proper divisors (7022174654).

10000001986 is a wasteful number, since it uses less digits than its factorization.

10000001986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21610.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 10000001986 its reverse (68910000001), we get a palindrome (78910001987).

The spelling of 10000001986 in words is "ten billion, one thousand, nine hundred eighty-six".