79901010001 has 4 divisors (see below), whose sum is σ = 80634046900. Its totient is φ = 79167973104.

The previous prime is 79901009971. The next prime is 79901010019. The reversal of 79901010001 is 10001010997.

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 54992595025 + 24908414976 = 234505^2 + 157824^2 .

It is a cyclic number.

It is not a de Polignac number, because 79901010001 - 2¹³ = 79901001809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79901010901) 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, 366518286 + ... + 366518503.

It is an arithmetic number, because the mean of its divisors is an integer number (20158511725).

Almost surely, 2^79901010001 is an apocalyptic number.

It is an amenable number.

79901010001 is a deficient number, since it is larger than the sum of its proper divisors (733036899).

79901010001 is a wasteful number, since it uses less digits than its factorization.

79901010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733036898.

The product of its (nonzero) digits is 567, while the sum is 28.

Adding to 79901010001 its reverse (10001010997), we get a palindrome (89902020998).

The spelling of 79901010001 in words is "seventy-nine billion, nine hundred one million, ten thousand, one".