7634681401 has 2 divisors, whose sum is σ = 7634681402. Its totient is φ = 7634681400.

The previous prime is 7634681359. The next prime is 7634681407. The reversal of 7634681401 is 1041864367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4705274025 + 2929407376 = 68595^2 + 54124^2 .

It is an emirp because it is prime and its reverse (1041864367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7634681401 - 2¹³ = 7634673209 is a prime.

It is not a weakly prime, because it can be changed into another prime (7634681407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817340700 + 3817340701.

It is an arithmetic number, because the mean of its divisors is an integer number (3817340701).

Almost surely, 2^7634681401 is an apocalyptic number.

It is an amenable number.

7634681401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7634681401 is an equidigital number, since it uses as much as digits as its factorization.

7634681401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 7634681401 is about 87376.6639383766. The cubic root of 7634681401 is about 1969.0812623592.

The spelling of 7634681401 in words is "seven billion, six hundred thirty-four million, six hundred eighty-one thousand, four hundred one".