77044417605406 has 16 divisors (see below), whose sum is σ = 115882257998304. Its totient is φ = 38417073133824.

The previous prime is 77044417605403. The next prime is 77044417605431. The reversal of 77044417605406 is 60450671444077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77044417605403) 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, 16655410 + ... + 20772373.

It is an arithmetic number, because the mean of its divisors is an integer number (7242641124894).

Almost surely, 2^{77044417605406} is an apocalyptic number.

77044417605406 is a deficient number, since it is larger than the sum of its proper divisors (38837840392898).

77044417605406 is a wasteful number, since it uses less digits than its factorization.

77044417605406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37430595.

The product of its (nonzero) digits is 15805440, while the sum is 55.

The spelling of 77044417605406 in words is "seventy-seven trillion, forty-four billion, four hundred seventeen million, six hundred five thousand, four hundred six".