3472442740021 has 2 divisors, whose sum is σ = 3472442740022. Its totient is φ = 3472442740020.

The previous prime is 3472442740007. The next prime is 3472442740049. The reversal of 3472442740021 is 1200472442743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2802359700625 + 670083039396 = 1674025^2 + 818586^2 .

It is a cyclic number.

It is not a de Polignac number, because 3472442740021 - 2¹⁹ = 3472442215733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3472442740051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1736221370010 + 1736221370011.

It is an arithmetic number, because the mean of its divisors is an integer number (1736221370011).

Almost surely, 2^{3472442740021} is an apocalyptic number.

It is an amenable number.

3472442740021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3472442740021 is an equidigital number, since it uses as much as digits as its factorization.

3472442740021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 40.

The spelling of 3472442740021 in words is "three trillion, four hundred seventy-two billion, four hundred forty-two million, seven hundred forty thousand, twenty-one".