11929636455406 has 16 divisors (see below), whose sum is σ = 17932788080640. Its totient is φ = 5952041784280.

The previous prime is 11929636455391. The next prime is 11929636455427. The reversal of 11929636455406 is 60455463692911.

It is a happy 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, 17787495 + ... + 18445981.

It is an arithmetic number, because the mean of its divisors is an integer number (1120799255040).

Almost surely, 2^{11929636455406} is an apocalyptic number.

11929636455406 is a deficient number, since it is larger than the sum of its proper divisors (6003151625234).

11929636455406 is a wasteful number, since it uses less digits than its factorization.

11929636455406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677879.

The product of its (nonzero) digits is 41990400, while the sum is 61.

The spelling of 11929636455406 in words is "eleven trillion, nine hundred twenty-nine billion, six hundred thirty-six million, four hundred fifty-five thousand, four hundred six".