13782638602 has 8 divisors (see below), whose sum is σ = 21232713636. Its totient is φ = 6705067392.

The previous prime is 13782638587. The next prime is 13782638603. The reversal of 13782638602 is 20683628731.

It can be written as a sum of positive squares in 2 ways, for example, as 13604656321 + 177982281 = 116639^2 + 13341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13782638602² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13782638603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93125863 + ... + 93126010.

Almost surely, 2^13782638602 is an apocalyptic number.

13782638602 is a deficient number, since it is larger than the sum of its proper divisors (7450075034).

13782638602 is a wasteful number, since it uses less digits than its factorization.

13782638602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186251912.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 13782638602 in words is "thirteen billion, seven hundred eighty-two million, six hundred thirty-eight thousand, six hundred two".