537780024357049 has 4 divisors (see below), whose sum is σ = 537848820581364. Its totient is φ = 537711228132736.

The previous prime is 537780024357019. The next prime is 537780024357053. The reversal of 537780024357049 is 940753420087735.

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 101159441418025 + 436620582939024 = 10057805^2 + 20895468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537780024357049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537780024357019) 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, 34398100432 + ... + 34398116065.

It is an arithmetic number, because the mean of its divisors is an integer number (134462205145341).

Almost surely, 2^{537780024357049} is an apocalyptic number.

It is an amenable number.

537780024357049 is a deficient number, since it is larger than the sum of its proper divisors (68796224315).

537780024357049 is an equidigital number, since it uses as much as digits as its factorization.

537780024357049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68796224314.

The product of its (nonzero) digits is 177811200, while the sum is 64.

The spelling of 537780024357049 in words is "five hundred thirty-seven trillion, seven hundred eighty billion, twenty-four million, three hundred fifty-seven thousand, forty-nine".