813090929701 has 4 divisors (see below), whose sum is σ = 813123321804. Its totient is φ = 813058537600.

The previous prime is 813090929687. The next prime is 813090929711. The reversal of 813090929701 is 107929090318.

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 428782684225 + 384308245476 = 654815^2 + 619926^2 .

It is a cyclic number.

It is not a de Polignac number, because 813090929701 - 2⁵ = 813090929669 is a prime.

It is a super-2 number, since 2×813090929701² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813090929711) 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, 16158370 + ... + 16208611.

It is an arithmetic number, because the mean of its divisors is an integer number (203280830451).

Almost surely, 2^813090929701 is an apocalyptic number.

It is an amenable number.

813090929701 is a deficient number, since it is larger than the sum of its proper divisors (32392103).

813090929701 is a wasteful number, since it uses less digits than its factorization.

813090929701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32392102.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 813090929701 in words is "eight hundred thirteen billion, ninety million, nine hundred twenty-nine thousand, seven hundred one".