18796999429 has 8 divisors (see below), whose sum is σ = 20267590392. Its totient is φ = 17329932480.

The previous prime is 18796999411. The next prime is 18796999447. The reversal of 18796999429 is 92499969781.

It is an interprime number because it is at equal distance from previous prime (18796999411) and next prime (18796999447).

It can be written as a sum of positive squares in 4 ways, for example, as 823575204 + 17973424225 = 28698^2 + 134065^2 .

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 18796999429 - 2⁹ = 18796998917 is a prime.

It is a super-3 number, since 3×18796999429³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18796939429) 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, 869914 + ... + 891259.

It is an arithmetic number, because the mean of its divisors is an integer number (2533448799).

Almost surely, 2^18796999429 is an apocalyptic number.

It is an amenable number.

18796999429 is a deficient number, since it is larger than the sum of its proper divisors (1470590963).

18796999429 is a wasteful number, since it uses less digits than its factorization.

18796999429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762007.

The product of its digits is 158723712, while the sum is 73.

The spelling of 18796999429 in words is "eighteen billion, seven hundred ninety-six million, nine hundred ninety-nine thousand, four hundred twenty-nine".