1290625542669 has 8 divisors (see below), whose sum is σ = 1721037908512. Its totient is φ = 860315102640.

The previous prime is 1290625542587. The next prime is 1290625542697. The reversal of 1290625542669 is 9662455260921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1290625542669 - 2¹⁹ = 1290625018381 is a prime.

It is a super-2 number, since 2×1290625542669² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290625541669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25451902 + ... + 25502559.

It is an arithmetic number, because the mean of its divisors is an integer number (215129738564).

Almost surely, 2^{1290625542669} is an apocalyptic number.

It is an amenable number.

1290625542669 is a deficient number, since it is larger than the sum of its proper divisors (430412365843).

1290625542669 is an equidigital number, since it uses as much as digits as its factorization.

1290625542669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50962907.

The product of its (nonzero) digits is 13996800, while the sum is 57.

The spelling of 1290625542669 in words is "one trillion, two hundred ninety billion, six hundred twenty-five million, five hundred forty-two thousand, six hundred sixty-nine".