11982081929 has 8 divisors (see below), whose sum is σ = 12616956000. Its totient is φ = 11347631712.

The previous prime is 11982081889. The next prime is 11982081949. The reversal of 11982081929 is 92918028911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11982081929 is a prime.

It is a super-2 number, since 2×11982081929² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11982081949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47084 + ... + 161805.

It is an arithmetic number, because the mean of its divisors is an integer number (1577119500).

Almost surely, 2^11982081929 is an apocalyptic number.

11982081929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11982081929 is a deficient number, since it is larger than the sum of its proper divisors (634874071).

11982081929 is a wasteful number, since it uses less digits than its factorization.

11982081929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211927.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 11982081929 in words is "eleven billion, nine hundred eighty-two million, eighty-one thousand, nine hundred twenty-nine".