11391704730 has 240 divisors, whose sum is σ = 37184209920. Its totient is φ = 2490409152.

The previous prime is 11391704683. The next prime is 11391704741. The reversal of 11391704730 is 3740719311.

11391704730 is a `hidden beast` number, since 1 + 13 + 9 + 170 + 473 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 906631 + ... + 919109.

It is an arithmetic number, because the mean of its divisors is an integer number (154934208).

Almost surely, 2^11391704730 is an apocalyptic number.

11391704730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11391704730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18592104960).

11391704730 is an abundant number, since it is smaller than the sum of its proper divisors (25792505190).

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

11391704730 is a wasteful number, since it uses less digits than its factorization.

11391704730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12535 (or 12519 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The spelling of 11391704730 in words is "eleven billion, three hundred ninety-one million, seven hundred four thousand, seven hundred thirty".