11911761340 has 24 divisors (see below), whose sum is σ = 25438679280. Its totient is φ = 4683946368.

The previous prime is 11911761319. The next prime is 11911761353. The reversal of 11911761340 is 4316711911.

It is a super-2 number, since 2×11911761340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11911761296 and 11911761305.

It is a congruent number.

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, 5046177 + ... + 5048536.

It is an arithmetic number, because the mean of its divisors is an integer number (1059944970).

Almost surely, 2^11911761340 is an apocalyptic number.

11911761340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11911761340 is an abundant number, since it is smaller than the sum of its proper divisors (13526917940).

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

11911761340 is a wasteful number, since it uses less digits than its factorization.

11911761340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094781 (or 10094779 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 11911761340 in words is "eleven billion, nine hundred eleven million, seven hundred sixty-one thousand, three hundred forty".