7738214625641 has 2 divisors, whose sum is σ = 7738214625642. Its totient is φ = 7738214625640.

The previous prime is 7738214625527. The next prime is 7738214625653. The reversal of 7738214625641 is 1465264128377.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5099851141225 + 2638363484416 = 2258285^2 + 1624304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7738214625641 is a prime.

It is not a weakly prime, because it can be changed into another prime (7738214625041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3869107312820 + 3869107312821.

It is an arithmetic number, because the mean of its divisors is an integer number (3869107312821).

Almost surely, 2^{7738214625641} is an apocalyptic number.

It is an amenable number.

7738214625641 is a deficient number, since it is larger than the sum of its proper divisors (1).

7738214625641 is an equidigital number, since it uses as much as digits as its factorization.

7738214625641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 56.

The spelling of 7738214625641 in words is "seven trillion, seven hundred thirty-eight billion, two hundred fourteen million, six hundred twenty-five thousand, six hundred forty-one".