495991486537 has 4 divisors (see below), whose sum is σ = 496075601556. Its totient is φ = 495907371520.

The previous prime is 495991486493. The next prime is 495991486607. The reversal of 495991486537 is 735684199594.

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 288794460816 + 207197025721 = 537396^2 + 455189^2 .

It is a cyclic number.

It is not a de Polignac number, because 495991486537 - 2¹¹ = 495991484489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495991486337) 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, 42048664 + ... + 42060457.

It is an arithmetic number, because the mean of its divisors is an integer number (124018900389).

Almost surely, 2^495991486537 is an apocalyptic number.

It is an amenable number.

495991486537 is a deficient number, since it is larger than the sum of its proper divisors (84115019).

495991486537 is an equidigital number, since it uses as much as digits as its factorization.

495991486537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84115018.

The product of its digits is 293932800, while the sum is 70.

The spelling of 495991486537 in words is "four hundred ninety-five billion, nine hundred ninety-one million, four hundred eighty-six thousand, five hundred thirty-seven".