14965977638 has 4 divisors (see below), whose sum is σ = 22448966460. Its totient is φ = 7482988818.

The previous prime is 14965977629. The next prime is 14965977643. The reversal of 14965977638 is 83677956941.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×14965977638² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3741494408 + ... + 3741494411.

It is an arithmetic number, because the mean of its divisors is an integer number (5612241615).

Almost surely, 2^14965977638 is an apocalyptic number.

14965977638 is a deficient number, since it is larger than the sum of its proper divisors (7482988822).

14965977638 is an equidigital number, since it uses as much as digits as its factorization.

14965977638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7482988821.

The product of its digits is 68584320, while the sum is 65.

The spelling of 14965977638 in words is "fourteen billion, nine hundred sixty-five million, nine hundred seventy-seven thousand, six hundred thirty-eight".