12835117440 has 160 divisors (see below), whose sum is σ = 45836706960. Its totient is φ = 3422684160.

The previous prime is 12835117433. The next prime is 12835117441. The reversal of 12835117440 is 4471153821.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12835117395 and 12835117404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12835117441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71956 + ... + 175635.

Almost surely, 2^12835117440 is an apocalyptic number.

12835117440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12835117440 is an abundant number, since it is smaller than the sum of its proper divisors (33001589520).

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

12835117440 is an equidigital number, since it uses as much as digits as its factorization.

12835117440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247622 (or 247601 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 12835117440 in words is "twelve billion, eight hundred thirty-five million, one hundred seventeen thousand, four hundred forty".