11707860840 has 128 divisors (see below), whose sum is σ = 37893864960. Its totient is φ = 2876719104.

The previous prime is 11707860833. The next prime is 11707860841. The reversal of 11707860840 is 4806870711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11707860792 and 11707860801.

It is not an unprimeable number, because it can be changed into a prime (11707860841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893617 + ... + 906623.

It is an arithmetic number, because the mean of its divisors is an integer number (296045820).

Almost surely, 2^11707860840 is an apocalyptic number.

11707860840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11707860840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18946932480).

11707860840 is an abundant number, since it is smaller than the sum of its proper divisors (26186004120).

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

11707860840 is a wasteful number, since it uses less digits than its factorization.

11707860840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13611 (or 13607 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 11707860840 in words is "eleven billion, seven hundred seven million, eight hundred sixty thousand, eight hundred forty".