1361799889 has 8 divisors (see below), whose sum is σ = 1391002272. Its totient is φ = 1332882720.

The previous prime is 1361799883. The next prime is 1361799913. The reversal of 1361799889 is 9889971631.

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 1361799889 - 2¹⁷ = 1361668817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361799883) 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, 61639 + ... + 80764.

It is an arithmetic number, because the mean of its divisors is an integer number (173875284).

Almost surely, 2^1361799889 is an apocalyptic number.

It is an amenable number.

1361799889 is a deficient number, since it is larger than the sum of its proper divisors (29202383).

1361799889 is a wasteful number, since it uses less digits than its factorization.

1361799889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142607.

The product of its digits is 5878656, while the sum is 61.

The square root of 1361799889 is about 36902.5729319786. The cubic root of 1361799889 is about 1108.4201991251.

The spelling of 1361799889 in words is "one billion, three hundred sixty-one million, seven hundred ninety-nine thousand, eight hundred eighty-nine".