457772462621 has 4 divisors (see below), whose sum is σ = 457777221852. Its totient is φ = 457767703392.

The previous prime is 457772462611. The next prime is 457772462687. The reversal of 457772462621 is 126264277754.

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

It can be written as a sum of positive squares in 2 ways, for example, as 98432160121 + 359340302500 = 313739^2 + 599450^2 .

It is a cyclic number.

It is not a de Polignac number, because 457772462621 - 2¹⁸ = 457772200477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457772462611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2232296 + ... + 2428721.

It is an arithmetic number, because the mean of its divisors is an integer number (114444305463).

Almost surely, 2^457772462621 is an apocalyptic number.

It is an amenable number.

457772462621 is a deficient number, since it is larger than the sum of its proper divisors (4759231).

457772462621 is an equidigital number, since it uses as much as digits as its factorization.

457772462621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759230.

The product of its digits is 7902720, while the sum is 53.

The spelling of 457772462621 in words is "four hundred fifty-seven billion, seven hundred seventy-two million, four hundred sixty-two thousand, six hundred twenty-one".