1292103984987 has 12 divisors (see below), whose sum is σ = 1866422975040. Its totient is φ = 861379324848.

The previous prime is 1292103984961. The next prime is 1292103984989. The reversal of 1292103984987 is 7894893012921.

1292103984987 is a `hidden beast` number, since 1 + 29 + 210 + 398 + 4 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 1292103984987 - 2¹⁹ = 1292103460699 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1292103984989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1590187 + ... + 2261172.

It is an arithmetic number, because the mean of its divisors is an integer number (155535247920).

Almost surely, 2^{1292103984987} is an apocalyptic number.

1292103984987 is a deficient number, since it is larger than the sum of its proper divisors (574318990053).

1292103984987 is a wasteful number, since it uses less digits than its factorization.

1292103984987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888642 (or 3888639 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 1292103984987 in words is "one trillion, two hundred ninety-two billion, one hundred three million, nine hundred eighty-four thousand, nine hundred eighty-seven".