13632522078 has 64 divisors (see below), whose sum is σ = 32947568640. Its totient is φ = 3673410912.

The previous prime is 13632522077. The next prime is 13632522131. The reversal of 13632522078 is 87022523631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13632522077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139651 + ... + 216257.

It is an arithmetic number, because the mean of its divisors is an integer number (514805760).

Almost surely, 2^13632522078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13632522078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16473784320).

13632522078 is an abundant number, since it is smaller than the sum of its proper divisors (19315046562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13632522078 is a wasteful number, since it uses less digits than its factorization.

13632522078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76861.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 13632522078 in words is "thirteen billion, six hundred thirty-two million, five hundred twenty-two thousand, seventy-eight".