13779967562 has 4 divisors (see below), whose sum is σ = 20669951346. Its totient is φ = 6889983780.

The previous prime is 13779967547. The next prime is 13779967631. The reversal of 13779967562 is 26576997731.

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

It can be written as a sum of positive squares in only one way, i.e., 13458088081 + 321879481 = 116009^2 + 17941^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13779967495 and 13779967504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444991889 + ... + 3444991892.

Almost surely, 2^13779967562 is an apocalyptic number.

13779967562 is a deficient number, since it is larger than the sum of its proper divisors (6889983784).

13779967562 is an equidigital number, since it uses as much as digits as its factorization.

13779967562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889983783.

The product of its digits is 30005640, while the sum is 62.

The spelling of 13779967562 in words is "thirteen billion, seven hundred seventy-nine million, nine hundred sixty-seven thousand, five hundred sixty-two".