13775628405 has 64 divisors (see below), whose sum is σ = 27696365568. Its totient is φ = 5679797760.

The previous prime is 13775628389. The next prime is 13775628407. The reversal of 13775628405 is 50482657731.

It is not a de Polignac number, because 13775628405 - 2⁴ = 13775628389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13775628407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99729 + ... + 193641.

It is an arithmetic number, because the mean of its divisors is an integer number (432755712).

Almost surely, 2^13775628405 is an apocalyptic number.

13775628405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13775628405 is an abundant number, since it is smaller than the sum of its proper divisors (13920737163).

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

13775628405 is a wasteful number, since it uses less digits than its factorization.

13775628405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94066.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 13775628405 in words is "thirteen billion, seven hundred seventy-five million, six hundred twenty-eight thousand, four hundred five".