13640342454 has 24 divisors (see below), whose sum is σ = 29560574160. Its totient is φ = 4545781008.

The previous prime is 13640342423. The next prime is 13640342461. The reversal of 13640342454 is 45424304631.

13640342454 is a `hidden beast` number, since 1 + 3 + 6 + 403 + 4 + 245 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3244 + ... + 165200.

It is an arithmetic number, because the mean of its divisors is an integer number (1231690590).

Almost surely, 2^13640342454 is an apocalyptic number.

13640342454 is an abundant number, since it is smaller than the sum of its proper divisors (15920231706).

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

13640342454 is a wasteful number, since it uses less digits than its factorization.

13640342454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166644 (or 166641 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 13640342454 in words is "thirteen billion, six hundred forty million, three hundred forty-two thousand, four hundred fifty-four".