1388750276265 has 32 divisors (see below), whose sum is σ = 2424415190400. Its totient is φ = 673218270720.

The previous prime is 1388750276227. The next prime is 1388750276281. The reversal of 1388750276265 is 5626720578831.

It is not a de Polignac number, because 1388750276265 - 2²³ = 1388741887657 is a prime.

It is a super-2 number, since 2×1388750276265² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1388750276199 and 1388750276208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251341 + ... + 1685429.

It is an arithmetic number, because the mean of its divisors is an integer number (75762974700).

Almost surely, 2^{1388750276265} is an apocalyptic number.

1388750276265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1388750276265 is a deficient number, since it is larger than the sum of its proper divisors (1035664914135).

1388750276265 is a wasteful number, since it uses less digits than its factorization.

1388750276265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439977.

The product of its (nonzero) digits is 33868800, while the sum is 60.

The spelling of 1388750276265 in words is "one trillion, three hundred eighty-eight billion, seven hundred fifty million, two hundred seventy-six thousand, two hundred sixty-five".