1983401392077 has 48 divisors (see below), whose sum is σ = 3380917542912. Its totient is φ = 1096450901280.

The previous prime is 1983401392051. The next prime is 1983401392099. The reversal of 1983401392077 is 7702931043891.

1983401392077 is a `hidden beast` number, since 1 + 9 + 83 + 401 + 3 + 92 + 0 + 77 = 666.

It is not a de Polignac number, because 1983401392077 - 2¹⁶ = 1983401326541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983401396077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5824288 + ... + 6155414.

It is an arithmetic number, because the mean of its divisors is an integer number (70435782144).

Almost surely, 2^{1983401392077} is an apocalyptic number.

It is an amenable number.

1983401392077 is a deficient number, since it is larger than the sum of its proper divisors (1397516150835).

1983401392077 is a wasteful number, since it uses less digits than its factorization.

1983401392077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334238 (or 334235 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 1983401392077 in words is "one trillion, nine hundred eighty-three billion, four hundred one million, three hundred ninety-two thousand, seventy-seven".