18283961371 has 8 divisors (see below), whose sum is σ = 19939666880. Its totient is φ = 16663862592.

The previous prime is 18283961369. The next prime is 18283961413. The reversal of 18283961371 is 17316938281.

It is a happy number.

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

It is not a de Polignac number, because 18283961371 - 2¹ = 18283961369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18283961351) 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, 8900610 + ... + 8902663.

It is an arithmetic number, because the mean of its divisors is an integer number (2492458360).

Almost surely, 2^18283961371 is an apocalyptic number.

18283961371 is a deficient number, since it is larger than the sum of its proper divisors (1655705509).

18283961371 is a wasteful number, since it uses less digits than its factorization.

18283961371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17803365.

The product of its digits is 435456, while the sum is 49.

The spelling of 18283961371 in words is "eighteen billion, two hundred eighty-three million, nine hundred sixty-one thousand, three hundred seventy-one".