11939180820461 has 8 divisors (see below), whose sum is σ = 12591588517920. Its totient is φ = 11289176098992.

The previous prime is 11939180820449. The next prime is 11939180820467. The reversal of 11939180820461 is 16402808193911.

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

It is a cyclic number.

It is not a de Polignac number, because 11939180820461 - 2¹⁰ = 11939180819437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939180820467) 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, 600733790 + ... + 600753663.

It is an arithmetic number, because the mean of its divisors is an integer number (1573948564740).

Almost surely, 2^{11939180820461} is an apocalyptic number.

It is an amenable number.

11939180820461 is a deficient number, since it is larger than the sum of its proper divisors (652407697459).

11939180820461 is a wasteful number, since it uses less digits than its factorization.

11939180820461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201487995.

The product of its (nonzero) digits is 746496, while the sum is 53.

The spelling of 11939180820461 in words is "eleven trillion, nine hundred thirty-nine billion, one hundred eighty million, eight hundred twenty thousand, four hundred sixty-one".