18397007343 has 36 divisors (see below), whose sum is σ = 31455697000. Its totient is φ = 10292024160.

The previous prime is 18397007339. The next prime is 18397007347. The reversal of 18397007343 is 34370079381.

It is an interprime number because it is at equal distance from previous prime (18397007339) and next prime (18397007347).

It is not a de Polignac number, because 18397007343 - 2² = 18397007339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18397007347) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 635593 + ... + 663906.

Almost surely, 2^18397007343 is an apocalyptic number.

18397007343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18397007343 is a deficient number, since it is larger than the sum of its proper divisors (13058689657).

18397007343 is a wasteful number, since it uses less digits than its factorization.

18397007343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299540 (or 1299526 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 18397007343 in words is "eighteen billion, three hundred ninety-seven million, seven thousand, three hundred forty-three".