798537251993 has 12 divisors (see below), whose sum is σ = 915552285948. Its totient is φ = 693751818240.

The previous prime is 798537251969. The next prime is 798537252013. The reversal of 798537251993 is 399152735897.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 76832632969 + 721704619024 = 277187^2 + 849532^2 .

It is not a de Polignac number, because 798537251993 - 2¹⁴ = 798537235609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798537251933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138969848 + ... + 138975593.

It is an arithmetic number, because the mean of its divisors is an integer number (76296023829).

Almost surely, 2^798537251993 is an apocalyptic number.

It is an amenable number.

798537251993 is a deficient number, since it is larger than the sum of its proper divisors (117015033955).

798537251993 is a wasteful number, since it uses less digits than its factorization.

798537251993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277945484 (or 277945471 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 68.

The spelling of 798537251993 in words is "seven hundred ninety-eight billion, five hundred thirty-seven million, two hundred fifty-one thousand, nine hundred ninety-three".