11497871040 has 56 divisors (see below), whose sum is σ = 36505743600. Its totient is φ = 3066098688.

The previous prime is 11497871003. The next prime is 11497871053. The reversal of 11497871040 is 4017879411.

It is a junction number, because it is equal to n+sod(n) for n = 11497870983 and 11497871001.

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, 5987515 + ... + 5989434.

Almost surely, 2^11497871040 is an apocalyptic number.

11497871040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11497871040 is an abundant number, since it is smaller than the sum of its proper divisors (25007872560).

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

11497871040 is a wasteful number, since it uses less digits than its factorization.

11497871040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11976969 (or 11976959 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 11497871040 in words is "eleven billion, four hundred ninety-seven million, eight hundred seventy-one thousand, forty".