537446494991 has 4 divisors (see below), whose sum is σ = 614224565712. Its totient is φ = 460668424272.

The previous prime is 537446494957. The next prime is 537446495051. The reversal of 537446494991 is 199494644735.

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

It is not a de Polignac number, because 537446494991 - 2¹⁴ = 537446478607 is a prime.

It is a super-3 number, since 3×537446494991³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537446404991) 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, 38389035350 + ... + 38389035363.

It is an arithmetic number, because the mean of its divisors is an integer number (153556141428).

Almost surely, 2^537446494991 is an apocalyptic number.

537446494991 is a deficient number, since it is larger than the sum of its proper divisors (76778070721).

537446494991 is an equidigital number, since it uses as much as digits as its factorization.

537446494991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76778070720.

The product of its digits is 117573120, while the sum is 65.

The spelling of 537446494991 in words is "five hundred thirty-seven billion, four hundred forty-six million, four hundred ninety-four thousand, nine hundred ninety-one".