387138126155 has 8 divisors (see below), whose sum is σ = 506799001584. Its totient is φ = 281555000800.

The previous prime is 387138126127. The next prime is 387138126197. The reversal of 387138126155 is 551621831783.

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

It is not a de Polignac number, because 387138126155 - 2⁶ = 387138126091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3519437456 + ... + 3519437565.

It is an arithmetic number, because the mean of its divisors is an integer number (63349875198).

Almost surely, 2^387138126155 is an apocalyptic number.

387138126155 is a deficient number, since it is larger than the sum of its proper divisors (119660875429).

387138126155 is a wasteful number, since it uses less digits than its factorization.

387138126155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038875037.

The product of its digits is 1209600, while the sum is 50.

The spelling of 387138126155 in words is "three hundred eighty-seven billion, one hundred thirty-eight million, one hundred twenty-six thousand, one hundred fifty-five".