726474474626 has 4 divisors (see below), whose sum is σ = 1089711711942. Its totient is φ = 363237237312.

The previous prime is 726474474623. The next prime is 726474474653. The reversal of 726474474626 is 626474474627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 626474474627 = 47 ⋅13329244141.

It can be written as a sum of positive squares in only one way, i.e., 600059383225 + 126415091401 = 774635^2 + 355549^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (726474474623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181618618655 + ... + 181618618658.

Almost surely, 2^726474474626 is an apocalyptic number.

726474474626 is a deficient number, since it is larger than the sum of its proper divisors (363237237316).

726474474626 is a wasteful number, since it uses less digits than its factorization.

726474474626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363237237315.

The product of its digits is 75866112, while the sum is 59.

Subtracting from 726474474626 its reverse (626474474627), we obtain a palindrome (99999999999).

The spelling of 726474474626 in words is "seven hundred twenty-six billion, four hundred seventy-four million, four hundred seventy-four thousand, six hundred twenty-six".