18777406039382 has 8 divisors (see below), whose sum is σ = 29390722496496. Its totient is φ = 8980498540552.

The previous prime is 18777406039369. The next prime is 18777406039489. The reversal of 18777406039382 is 28393060477781.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204102239513 + ... + 204102239604.

It is an arithmetic number, because the mean of its divisors is an integer number (3673840312062).

Almost surely, 2^{18777406039382} is an apocalyptic number.

18777406039382 is a deficient number, since it is larger than the sum of its proper divisors (10613316457114).

18777406039382 is a wasteful number, since it uses less digits than its factorization.

18777406039382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408204479142.

The product of its (nonzero) digits is 85349376, while the sum is 65.

The spelling of 18777406039382 in words is "eighteen trillion, seven hundred seventy-seven billion, four hundred six million, thirty-nine thousand, three hundred eighty-two".