10386893981 has 8 divisors (see below), whose sum is σ = 10419443424. Its totient is φ = 10354389520.

The previous prime is 10386893941. The next prime is 10386894029. The reversal of 10386893981 is 18939868301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10386893981 - 2⁶ = 10386893917 is a prime.

It is a super-2 number, since 2×10386893981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10386893941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485006 + ... + 505968.

It is an arithmetic number, because the mean of its divisors is an integer number (1302430428).

Almost surely, 2^10386893981 is an apocalyptic number.

It is an amenable number.

10386893981 is a deficient number, since it is larger than the sum of its proper divisors (32549443).

10386893981 is a wasteful number, since it uses less digits than its factorization.

10386893981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22491.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 10386893981 in words is "ten billion, three hundred eighty-six million, eight hundred ninety-three thousand, nine hundred eighty-one".