454311801997 has 4 divisors (see below), whose sum is σ = 454335068320. Its totient is φ = 454288535676.

The previous prime is 454311801961. The next prime is 454311802037. The reversal of 454311801997 is 799108113454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454311801997 is a prime.

It is a super-2 number, since 2×454311801997² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454311801917) 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, 11603847 + ... + 11642932.

It is an arithmetic number, because the mean of its divisors is an integer number (113583767080).

Almost surely, 2^454311801997 is an apocalyptic number.

It is an amenable number.

454311801997 is a deficient number, since it is larger than the sum of its proper divisors (23266323).

454311801997 is a wasteful number, since it uses less digits than its factorization.

454311801997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23266322.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 454311801997 in words is "four hundred fifty-four billion, three hundred eleven million, eight hundred one thousand, nine hundred ninety-seven".