21470075271074 has 4 divisors (see below), whose sum is σ = 32205112906614. Its totient is φ = 10735037635536.

The previous prime is 21470075271037. The next prime is 21470075271131. The reversal of 21470075271074 is 47017257007412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13885796113225 + 7584279157849 = 3726365^2 + 2753957^2 .

It is a super-2 number, since 2×21470075271074² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5367518817767 + ... + 5367518817770.

Almost surely, 2^{21470075271074} is an apocalyptic number.

21470075271074 is a deficient number, since it is larger than the sum of its proper divisors (10735037635540).

21470075271074 is a wasteful number, since it uses less digits than its factorization.

21470075271074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735037635539.

The product of its (nonzero) digits is 768320, while the sum is 47.

The spelling of 21470075271074 in words is "twenty-one trillion, four hundred seventy billion, seventy-five million, two hundred seventy-one thousand, seventy-four".