75493220013 has 12 divisors (see below), whose sum is σ = 109417935900. Its totient is φ = 50157040896.

The previous prime is 75493219987. The next prime is 75493220017. The reversal of 75493220013 is 31002239457.

It can be written as a sum of positive squares in 2 ways, for example, as 49451974884 + 26041245129 = 222378^2 + 161373^2 .

It is not a de Polignac number, because 75493220013 - 2¹⁰ = 75493218989 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75493220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75493220017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14311588 + ... + 14316861.

It is an arithmetic number, because the mean of its divisors is an integer number (9118161325).

Almost surely, 2^75493220013 is an apocalyptic number.

It is an amenable number.

75493220013 is a deficient number, since it is larger than the sum of its proper divisors (33924715887).

75493220013 is a wasteful number, since it uses less digits than its factorization.

75493220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28628748 (or 28628745 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 75493220013 in words is "seventy-five billion, four hundred ninety-three million, two hundred twenty thousand, thirteen".