13571073840 has 40 divisors (see below), whose sum is σ = 42070329648. Its totient is φ = 3618952960.

The previous prime is 13571073839. The next prime is 13571073853. The reversal of 13571073840 is 4837017531.

It is a tau number, because it is divible by the number of its divisors (40).

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, 28272831 + ... + 28273310.

Almost surely, 2^13571073840 is an apocalyptic number.

13571073840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13571073840 is an abundant number, since it is smaller than the sum of its proper divisors (28499255808).

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

13571073840 is a wasteful number, since it uses less digits than its factorization.

13571073840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56546157 (or 56546151 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 13571073840 in words is "thirteen billion, five hundred seventy-one million, seventy-three thousand, eight hundred forty".