718873306238053 has 4 divisors (see below), whose sum is σ = 719235094516960. Its totient is φ = 718511517959148.

The previous prime is 718873306238047. The next prime is 718873306238063. The reversal of 718873306238053 is 350832603378817.

It is a happy number.

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 not a de Polignac number, because 718873306238053 - 2¹⁷ = 718873306106981 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 (718873306238033) 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, 180894136473 + ... + 180894140446.

It is an arithmetic number, because the mean of its divisors is an integer number (179808773629240).

Almost surely, 2^{718873306238053} is an apocalyptic number.

It is an amenable number.

718873306238053 is a deficient number, since it is larger than the sum of its proper divisors (361788278907).

718873306238053 is a wasteful number, since it uses less digits than its factorization.

718873306238053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361788278906.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 718873306238053 in words is "seven hundred eighteen trillion, eight hundred seventy-three billion, three hundred six million, two hundred thirty-eight thousand, fifty-three".