7045045273621 has 2 divisors, whose sum is σ = 7045045273622. Its totient is φ = 7045045273620.

The previous prime is 7045045273579. The next prime is 7045045273631. The reversal of 7045045273621 is 1263725405407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6472622898225 + 572422375396 = 2544135^2 + 756586^2 .

It is a cyclic number.

It is not a de Polignac number, because 7045045273621 - 2²³ = 7045036885013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7045045273631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3522522636810 + 3522522636811.

It is an arithmetic number, because the mean of its divisors is an integer number (3522522636811).

Almost surely, 2^{7045045273621} is an apocalyptic number.

It is an amenable number.

7045045273621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7045045273621 is an equidigital number, since it uses as much as digits as its factorization.

7045045273621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 7045045273621 in words is "seven trillion, forty-five billion, forty-five million, two hundred seventy-three thousand, six hundred twenty-one".