13406638523570 has 16 divisors (see below), whose sum is σ = 24131994828480. Its totient is φ = 5362645301424.

The previous prime is 13406638523569. The next prime is 13406638523617. The reversal of 13406638523570 is 7532583660431.

13406638523570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6693011 + ... + 8462249.

It is an arithmetic number, because the mean of its divisors is an integer number (1508249676780).

Almost surely, 2^{13406638523570} is an apocalyptic number.

13406638523570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13406638523570 is a deficient number, since it is larger than the sum of its proper divisors (10725356304910).

13406638523570 is a wasteful number, since it uses less digits than its factorization.

13406638523570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527009.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 13406638523570 in words is "thirteen trillion, four hundred six billion, six hundred thirty-eight million, five hundred twenty-three thousand, five hundred seventy".