1387421355485 has 32 divisors (see below), whose sum is σ = 1853696427264. Its totient is φ = 988373376000.

The previous prime is 1387421355469. The next prime is 1387421355497. The reversal of 1387421355485 is 5845531247831.

It is not a de Polignac number, because 1387421355485 - 2⁴ = 1387421355469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1387421355485.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 49409 + ... + 1666518.

It is an arithmetic number, because the mean of its divisors is an integer number (57928013352).

Almost surely, 2^{1387421355485} is an apocalyptic number.

It is an amenable number.

1387421355485 is a deficient number, since it is larger than the sum of its proper divisors (466275071779).

1387421355485 is a wasteful number, since it uses less digits than its factorization.

1387421355485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716245.

The product of its digits is 16128000, while the sum is 56.

The spelling of 1387421355485 in words is "one trillion, three hundred eighty-seven billion, four hundred twenty-one million, three hundred fifty-five thousand, four hundred eighty-five".