1383977496915 has 96 divisors (see below), whose sum is σ = 2736744978240. Its totient is φ = 640946331648.

The previous prime is 1383977496899. The next prime is 1383977496971. The reversal of 1383977496915 is 5196947793831.

1383977496915 is a `hidden beast` number, since 1 + 38 + 3 + 97 + 7 + 496 + 9 + 15 = 666.

It is not a de Polignac number, because 1383977496915 - 2⁴ = 1383977496899 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, 20682031 + ... + 20748839.

It is an arithmetic number, because the mean of its divisors is an integer number (28507760190).

Almost surely, 2^{1383977496915} is an apocalyptic number.

1383977496915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1383977496915 is a deficient number, since it is larger than the sum of its proper divisors (1352767481325).

1383977496915 is a wasteful number, since it uses less digits than its factorization.

1383977496915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68933 (or 68930 counting only the distinct ones).

The product of its digits is 308629440, while the sum is 72.

The spelling of 1383977496915 in words is "one trillion, three hundred eighty-three billion, nine hundred seventy-seven million, four hundred ninety-six thousand, nine hundred fifteen".