18700836001 has 3 divisors (see below), whose sum is σ = 18700972753. Its totient is φ = 18700699250.

The previous prime is 18700835987. The next prime is 18700836019. The reversal of 18700836001 is 10063800781.

The square root of 18700836001 is 136751.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10063800781 = 49789 ⋅202129.

It is not a de Polignac number, because 18700836001 - 2¹⁷ = 18700704929 is a prime.

It is a super-3 number, since 3×18700836001³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18700836031) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 68376 + ... + 205126.

Almost surely, 2^18700836001 is an apocalyptic number.

18700836001 is the 136751-st square number.

18700836001 is the 68376-th centered octagonal number.

It is an amenable number.

18700836001 is a deficient number, since it is larger than the sum of its proper divisors (136752).

18700836001 is an frugal number, since it uses more digits than its factorization.

18700836001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273502 (or 136751 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 18700836001 in words is "eighteen billion, seven hundred million, eight hundred thirty-six thousand, one".