10018971649 has 8 divisors (see below), whose sum is σ = 10815082560. Its totient is φ = 9252902736.

The previous prime is 10018971617. The next prime is 10018971671. The reversal of 10018971649 is 94617981001.

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 10018971649 - 2⁵ = 10018971617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10018971599 and 10018971608.

It is not an unprimeable number, because it can be changed into a prime (10018971679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7509807 + ... + 7511140.

It is an arithmetic number, because the mean of its divisors is an integer number (1351885320).

Almost surely, 2^10018971649 is an apocalyptic number.

It is an amenable number.

10018971649 is a deficient number, since it is larger than the sum of its proper divisors (796110911).

10018971649 is a wasteful number, since it uses less digits than its factorization.

10018971649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020999.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 10018971649 in words is "ten billion, eighteen million, nine hundred seventy-one thousand, six hundred forty-nine".