18697150463 has 2 divisors, whose sum is σ = 18697150464. Its totient is φ = 18697150462.

The previous prime is 18697150429. The next prime is 18697150471. The reversal of 18697150463 is 36405179681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18697150463 - 2¹² = 18697146367 is a prime.

It is a super-2 number, since 2×18697150463² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18697153463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9348575231 + 9348575232.

It is an arithmetic number, because the mean of its divisors is an integer number (9348575232).

Almost surely, 2^18697150463 is an apocalyptic number.

18697150463 is a deficient number, since it is larger than the sum of its proper divisors (1).

18697150463 is an equidigital number, since it uses as much as digits as its factorization.

18697150463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 18697150463 in words is "eighteen billion, six hundred ninety-seven million, one hundred fifty thousand, four hundred sixty-three".