1290888360956 has 24 divisors (see below), whose sum is σ = 2397106434240. Its totient is φ = 606164815872.

The previous prime is 1290888360947. The next prime is 1290888360989. The reversal of 1290888360956 is 6590638880921.

It is a junction number, because it is equal to n+sod(n) for n = 1290888360892 and 1290888360901.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20469221 + ... + 20532188.

It is an arithmetic number, because the mean of its divisors is an integer number (99879434760).

Almost surely, 2^{1290888360956} is an apocalyptic number.

It is an amenable number.

1290888360956 is a deficient number, since it is larger than the sum of its proper divisors (1106218073284).

1290888360956 is a wasteful number, since it uses less digits than its factorization.

1290888360956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41001893 (or 41001891 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 1290888360956 in words is "one trillion, two hundred ninety billion, eight hundred eighty-eight million, three hundred sixty thousand, nine hundred fifty-six".