1387765137774 has 8 divisors (see below), whose sum is σ = 2775530275560. Its totient is φ = 462588379256.

The previous prime is 1387765137769. The next prime is 1387765137833. The reversal of 1387765137774 is 4777315677831.

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

1387765137774 is an admirable number.

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, 115647094809 + ... + 115647094820.

It is an arithmetic number, because the mean of its divisors is an integer number (346941284445).

Almost surely, 2^{1387765137774} is an apocalyptic number.

1387765137774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387765137774 is a wasteful number, since it uses less digits than its factorization.

1387765137774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231294189634.

The product of its digits is 145212480, while the sum is 66.

The spelling of 1387765137774 in words is "one trillion, three hundred eighty-seven billion, seven hundred sixty-five million, one hundred thirty-seven thousand, seven hundred seventy-four".