1974648869287 has 2 divisors, whose sum is σ = 1974648869288. Its totient is φ = 1974648869286.

The previous prime is 1974648869269. The next prime is 1974648869299. The reversal of 1974648869287 is 7829688464791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1974648869287 - 2¹⁵ = 1974648836519 is a prime.

It is a super-2 number, since 2×1974648869287² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1974648869227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987324434643 + 987324434644.

It is an arithmetic number, because the mean of its divisors is an integer number (987324434644).

Almost surely, 2^{1974648869287} is an apocalyptic number.

1974648869287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974648869287 is an equidigital number, since it uses as much as digits as its factorization.

1974648869287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2341011456, while the sum is 79.

The spelling of 1974648869287 in words is "one trillion, nine hundred seventy-four billion, six hundred forty-eight million, eight hundred sixty-nine thousand, two hundred eighty-seven".