1387641452475 has 96 divisors (see below), whose sum is σ = 2360998886400. Its totient is φ = 718712780800.

The previous prime is 1387641452437. The next prime is 1387641452489. The reversal of 1387641452475 is 5742541467831.

It is not a de Polignac number, because 1387641452475 - 2¹³ = 1387641444283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1052039866 + ... + 1052041184.

It is an arithmetic number, because the mean of its divisors is an integer number (24593738400).

Almost surely, 2^{1387641452475} is an apocalyptic number.

1387641452475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1387641452475 is a deficient number, since it is larger than the sum of its proper divisors (973357433925).

1387641452475 is a wasteful number, since it uses less digits than its factorization.

1387641452475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685 (or 2680 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 57.

The spelling of 1387641452475 in words is "one trillion, three hundred eighty-seven billion, six hundred forty-one million, four hundred fifty-two thousand, four hundred seventy-five".