11979777649910 has 16 divisors (see below), whose sum is σ = 24644114022816. Its totient is φ = 4107352337088.

The previous prime is 11979777649909. The next prime is 11979777650011. The reversal of 11979777649910 is 1994677797911.

It is a Curzon number.

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, 85569840287 + ... + 85569840426.

It is an arithmetic number, because the mean of its divisors is an integer number (1540257126426).

Almost surely, 2^{11979777649910} is an apocalyptic number.

11979777649910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11979777649910 is an abundant number, since it is smaller than the sum of its proper divisors (12664336372906).

11979777649910 is a wasteful number, since it uses less digits than its factorization.

11979777649910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171139680727.

The product of its (nonzero) digits is 378071064, while the sum is 77.

The spelling of 11979777649910 in words is "eleven trillion, nine hundred seventy-nine billion, seven hundred seventy-seven million, six hundred forty-nine thousand, nine hundred ten".