11970339840 has 352 divisors, whose sum is σ = 42930011520. Its totient is φ = 3162931200.

The previous prime is 11970339839. The next prime is 11970339851. The reversal of 11970339840 is 4893307911.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18109110 + ... + 18109770.

It is an arithmetic number, because the mean of its divisors is an integer number (121960260).

Almost surely, 2^11970339840 is an apocalyptic number.

11970339840 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 11970339840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21465005760).

11970339840 is an abundant number, since it is smaller than the sum of its proper divisors (30959671680).

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

11970339840 is a wasteful number, since it uses less digits than its factorization.

11970339840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 11970339840 in words is "eleven billion, nine hundred seventy million, three hundred thirty-nine thousand, eight hundred forty".