20381518862 has 8 divisors (see below), whose sum is σ = 31901507856. Its totient is φ = 9747682912.

The previous prime is 20381518853. The next prime is 20381518879. The reversal of 20381518862 is 26881518302.

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

It is a super-2 number, since 2×20381518862² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221538203 + ... + 221538294.

It is an arithmetic number, because the mean of its divisors is an integer number (3987688482).

Almost surely, 2^20381518862 is an apocalyptic number.

20381518862 is a deficient number, since it is larger than the sum of its proper divisors (11519988994).

20381518862 is a wasteful number, since it uses less digits than its factorization.

20381518862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443076522.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 20381518862 in words is "twenty billion, three hundred eighty-one million, five hundred eighteen thousand, eight hundred sixty-two".