454721656754 has 8 divisors (see below), whose sum is σ = 688118613660. Its totient is φ = 225348785536.

The previous prime is 454721656751. The next prime is 454721656777. The reversal of 454721656754 is 457656127454.

It can be written as a sum of positive squares in 2 ways, for example, as 326181481129 + 128540175625 = 571123^2 + 358525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×454721656754² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 454721656754.

It is not an unprimeable number, because it can be changed into a prime (454721656751) 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, 1006021139 + ... + 1006021590.

Almost surely, 2^454721656754 is an apocalyptic number.

454721656754 is a deficient number, since it is larger than the sum of its proper divisors (233396956906).

454721656754 is a wasteful number, since it uses less digits than its factorization.

454721656754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012042844.

The product of its digits is 28224000, while the sum is 56.

The spelling of 454721656754 in words is "four hundred fifty-four billion, seven hundred twenty-one million, six hundred fifty-six thousand, seven hundred fifty-four".