79900201001 has 4 divisors (see below), whose sum is σ = 79900964100. Its totient is φ = 79899437904.

The previous prime is 79900200979. The next prime is 79900201027. The reversal of 79900201001 is 10010200997.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33242040976 + 46658160025 = 182324^2 + 216005^2 .

It is a cyclic number.

It is not a de Polignac number, because 79900201001 - 2⁶ = 79900200937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79900200001) 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, 193646 + ... + 444183.

It is an arithmetic number, because the mean of its divisors is an integer number (19975241025).

Almost surely, 2^79900201001 is an apocalyptic number.

It is an amenable number.

79900201001 is a deficient number, since it is larger than the sum of its proper divisors (763099).

79900201001 is a wasteful number, since it uses less digits than its factorization.

79900201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763098.

The product of its (nonzero) digits is 1134, while the sum is 29.

Adding to 79900201001 its reverse (10010200997), we get a palindrome (89910401998).

The spelling of 79900201001 in words is "seventy-nine billion, nine hundred million, two hundred one thousand, one".