1290625542668 has 24 divisors (see below), whose sum is σ = 2815910275584. Its totient is φ = 502841120400.

The previous prime is 1290625542587. The next prime is 1290625542697. The reversal of 1290625542668 is 8662455260921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095171028 + ... + 2095171643.

It is an arithmetic number, because the mean of its divisors is an integer number (117329594816).

Almost surely, 2^{1290625542668} is an apocalyptic number.

It is an amenable number.

1290625542668 is an abundant number, since it is smaller than the sum of its proper divisors (1525284732916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1290625542668 is a wasteful number, since it uses less digits than its factorization.

1290625542668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190342693 (or 4190342691 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 1290625542668 in words is "one trillion, two hundred ninety billion, six hundred twenty-five million, five hundred forty-two thousand, six hundred sixty-eight".