743556197473 has 6 divisors (see below), whose sum is σ = 751230305574. Its totient is φ = 735882264576.

The previous prime is 743556197453. The next prime is 743556197497. The reversal of 743556197473 is 374791655347.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 280214598609 + 463341598864 = 529353^2 + 680692^2 .

It is not a de Polignac number, because 743556197473 - 2¹³ = 743556189281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743556197453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8448865 + ... + 8536417.

It is an arithmetic number, because the mean of its divisors is an integer number (125205050929).

Almost surely, 2^743556197473 is an apocalyptic number.

It is an amenable number.

743556197473 is a deficient number, since it is larger than the sum of its proper divisors (7674108101).

743556197473 is an frugal number, since it uses more digits than its factorization.

743556197473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175203 (or 87650 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 61.

The spelling of 743556197473 in words is "seven hundred forty-three billion, five hundred fifty-six million, one hundred ninety-seven thousand, four hundred seventy-three".