1626650625442 has 16 divisors (see below), whose sum is σ = 2447048335680. Its totient is φ = 810968358352.

The previous prime is 1626650625421. The next prime is 1626650625449. The reversal of 1626650625442 is 2445260566261.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1626650625449) 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, 6484668 + ... + 6730840.

It is an arithmetic number, because the mean of its divisors is an integer number (152940520980).

Almost surely, 2^{1626650625442} is an apocalyptic number.

1626650625442 is a deficient number, since it is larger than the sum of its proper divisors (820397710238).

1626650625442 is a wasteful number, since it uses less digits than its factorization.

1626650625442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255737.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 1626650625442 in words is "one trillion, six hundred twenty-six billion, six hundred fifty million, six hundred twenty-five thousand, four hundred forty-two".