451497897373 has 2 divisors, whose sum is σ = 451497897374. Its totient is φ = 451497897372.

The previous prime is 451497897287. The next prime is 451497897437. The reversal of 451497897373 is 373798794154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229673853049 + 221824044324 = 479243^2 + 470982^2 .

It is a cyclic number.

It is not a de Polignac number, because 451497897373 - 2²¹ = 451495800221 is a prime.

It is a super-2 number, since 2×451497897373² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451497897299 and 451497897308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451497897673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225748948686 + 225748948687.

It is an arithmetic number, because the mean of its divisors is an integer number (225748948687).

Almost surely, 2^451497897373 is an apocalyptic number.

It is an amenable number.

451497897373 is a deficient number, since it is larger than the sum of its proper divisors (1).

451497897373 is an equidigital number, since it uses as much as digits as its factorization.

451497897373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 160030080, while the sum is 67.

The spelling of 451497897373 in words is "four hundred fifty-one billion, four hundred ninety-seven million, eight hundred ninety-seven thousand, three hundred seventy-three".