1625313750667 has 2 divisors, whose sum is σ = 1625313750668. Its totient is φ = 1625313750666.

The previous prime is 1625313750617. The next prime is 1625313750733. The reversal of 1625313750667 is 7660573135261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1625313750667 - 2⁷ = 1625313750539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1625313750617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812656875333 + 812656875334.

It is an arithmetic number, because the mean of its divisors is an integer number (812656875334).

Almost surely, 2^{1625313750667} is an apocalyptic number.

1625313750667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625313750667 is an equidigital number, since it uses as much as digits as its factorization.

1625313750667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4762800, while the sum is 52.

The spelling of 1625313750667 in words is "one trillion, six hundred twenty-five billion, three hundred thirteen million, seven hundred fifty thousand, six hundred sixty-seven".