1291654003875 has 32 divisors (see below), whose sum is σ = 2149443439104. Its totient is φ = 688840092000.

The previous prime is 1291654003853. The next prime is 1291654003877. The reversal of 1291654003875 is 5783004561921.

It is not a de Polignac number, because 1291654003875 - 2⁷ = 1291654003747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1291654003877) 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 31 ways as a sum of consecutive naturals, for example, 6620472 + ... + 6812778.

It is an arithmetic number, because the mean of its divisors is an integer number (67170107472).

It is a 1-persistent number, because it is pandigital, but 2⋅1291654003875 = 2583308007750 is not.

Almost surely, 2^{1291654003875} is an apocalyptic number.

1291654003875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1291654003875 is a deficient number, since it is larger than the sum of its proper divisors (857789435229).

1291654003875 is a wasteful number, since it uses less digits than its factorization.

1291654003875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210236 (or 210226 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 1291654003875 in words is "one trillion, two hundred ninety-one billion, six hundred fifty-four million, three thousand, eight hundred seventy-five".