2573943797 has 4 divisors (see below), whose sum is σ = 2636722956. Its totient is φ = 2511164640.

The previous prime is 2573943773. The next prime is 2573943811. The reversal of 2573943797 is 7973493752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125574436 + 2448369361 = 11206^2 + 49481^2 .

It is a cyclic number.

It is not a de Polignac number, because 2573943797 - 2³⁰ = 1500201973 is a prime.

It is a super-2 number, since 2×2573943797² = 13250373340229554418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573943727) 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, 31389518 + ... + 31389599.

It is an arithmetic number, because the mean of its divisors is an integer number (659180739).

Almost surely, 2^2573943797 is an apocalyptic number.

It is an amenable number.

2573943797 is a deficient number, since it is larger than the sum of its proper divisors (62779159).

2573943797 is an equidigital number, since it uses as much as digits as its factorization.

2573943797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62779158.

The product of its digits is 10001880, while the sum is 56.

The square root of 2573943797 is about 50734.0496806632. The cubic root of 2573943797 is about 1370.4599654319.

The spelling of 2573943797 in words is "two billion, five hundred seventy-three million, nine hundred forty-three thousand, seven hundred ninety-seven".