35475688021 has 2 divisors, whose sum is σ = 35475688022. Its totient is φ = 35475688020.

The previous prime is 35475688007. The next prime is 35475688033. The reversal of 35475688021 is 12088657453.

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., 32802280996 + 2673407025 = 181114^2 + 51705^2 .

It is a cyclic number.

It is not a de Polignac number, because 35475688021 - 2²¹ = 35473590869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35475688051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17737844010 + 17737844011.

It is an arithmetic number, because the mean of its divisors is an integer number (17737844011).

Almost surely, 2^35475688021 is an apocalyptic number.

It is an amenable number.

35475688021 is a deficient number, since it is larger than the sum of its proper divisors (1).

35475688021 is an equidigital number, since it uses as much as digits as its factorization.

35475688021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 35475688021 in words is "thirty-five billion, four hundred seventy-five million, six hundred eighty-eight thousand, twenty-one".