1387775001390 has 32 divisors (see below), whose sum is σ = 3420677844000. Its totient is φ = 360071351424.

The previous prime is 1387775001367. The next prime is 1387775001391. The reversal of 1387775001390 is 931005777831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387775001391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625122765 + ... + 625124984.

It is an arithmetic number, because the mean of its divisors is an integer number (106896182625).

Almost surely, 2^{1387775001390} is an apocalyptic number.

1387775001390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387775001390 is an abundant number, since it is smaller than the sum of its proper divisors (2032902842610).

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

1387775001390 is a wasteful number, since it uses less digits than its factorization.

1387775001390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250247796.

The product of its (nonzero) digits is 1111320, while the sum is 51.

The spelling of 1387775001390 in words is "one trillion, three hundred eighty-seven billion, seven hundred seventy-five million, one thousand, three hundred ninety".