13320787634 has 48 divisors (see below), whose sum is σ = 26421460800. Its totient is φ = 4916751840.

The previous prime is 13320787583. The next prime is 13320787661. The reversal of 13320787634 is 43678702331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174749 + ... + 239120.

It is an arithmetic number, because the mean of its divisors is an integer number (550447100).

Almost surely, 2^13320787634 is an apocalyptic number.

13320787634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13320787634 is a deficient number, since it is larger than the sum of its proper divisors (13100673166).

13320787634 is a wasteful number, since it uses less digits than its factorization.

13320787634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413919 (or 413908 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 13320787634 in words is "thirteen billion, three hundred twenty million, seven hundred eighty-seven thousand, six hundred thirty-four".