99345400454399 has 4 divisors (see below), whose sum is σ = 108376800495720. Its totient is φ = 90314000413080.

The previous prime is 99345400454357. The next prime is 99345400454411.

99345400454399 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99345400454399 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 (99345400454309) 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, 4515700020644 + ... + 4515700020665.

It is an arithmetic number, because the mean of its divisors is an integer number (27094200123930).

Almost surely, 2^{99345400454399} is an apocalyptic number.

99345400454399 is a deficient number, since it is larger than the sum of its proper divisors (9031400041321).

99345400454399 is a wasteful number, since it uses less digits than its factorization.

99345400454399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9031400041320.

The product of its (nonzero) digits is 377913600, while the sum is 68.

It can be divided in two parts, 99345400 and 454399, that added together give a palindrome (99799799).

The spelling of 99345400454399 in words is "ninety-nine trillion, three hundred forty-five billion, four hundred million, four hundred fifty-four thousand, three hundred ninety-nine".