18632097699 has 24 divisors (see below), whose sum is σ = 27761458320. Its totient is φ = 11075415552.

The previous prime is 18632097697. The next prime is 18632097707. The reversal of 18632097699 is 99679023681.

It is not a de Polignac number, because 18632097699 - 2¹ = 18632097697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18632097691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487594 + ... + 524415.

It is an arithmetic number, because the mean of its divisors is an integer number (1156727430).

Almost surely, 2^18632097699 is an apocalyptic number.

18632097699 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18632097699 is a deficient number, since it is larger than the sum of its proper divisors (9129360621).

18632097699 is a wasteful number, since it uses less digits than its factorization.

18632097699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012067 (or 1012048 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 18632097699 in words is "eighteen billion, six hundred thirty-two million, ninety-seven thousand, six hundred ninety-nine".