747545264449 has 9 divisors (see below), whose sum is σ = 753160968931. Its totient is φ = 741971143120.

The previous prime is 747545264363. The next prime is 747545264503. The reversal of 747545264449 is 944462545747.

The square root of 747545264449 is 864607.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 439111649025 + 308433615424 = 662655^2 + 555368^2 .

It is not a de Polignac number, because 747545264449 - 2¹³ = 747545256257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747545267449) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 118448004 + ... + 118454314.

Almost surely, 2^747545264449 is an apocalyptic number.

747545264449 is the 864607-th square number.

747545264449 is the 432304-th centered octagonal number.

It is an amenable number.

747545264449 is a deficient number, since it is larger than the sum of its proper divisors (5615704482).

747545264449 is an frugal number, since it uses more digits than its factorization.

747545264449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12896 (or 6448 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 61.

The spelling of 747545264449 in words is "seven hundred forty-seven billion, five hundred forty-five million, two hundred sixty-four thousand, four hundred forty-nine".