745431456423373 has 8 divisors (see below), whose sum is σ = 748963670029848. Its totient is φ = 741905964442944.

The previous prime is 745431456423331. The next prime is 745431456423463. The reversal of 745431456423373 is 373324654134547.

It can be written as a sum of positive squares in 4 ways, for example, as 590893789206249 + 154537667217124 = 24308307^2 + 12431318^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 745431456423373 - 2⁴⁹ = 182481503002061 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 (745431456420373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680184186 + ... + 1680627787.

It is an arithmetic number, because the mean of its divisors is an integer number (93620458753731).

Almost surely, 2^{745431456423373} is an apocalyptic number.

It is an amenable number.

745431456423373 is a deficient number, since it is larger than the sum of its proper divisors (3532213606475).

745431456423373 is a wasteful number, since it uses less digits than its factorization.

745431456423373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360813023.

The product of its digits is 304819200, while the sum is 61.

The spelling of 745431456423373 in words is "seven hundred forty-five trillion, four hundred thirty-one billion, four hundred fifty-six million, four hundred twenty-three thousand, three hundred seventy-three".