309072672001 has 4 divisors (see below), whose sum is σ = 310859219412. Its totient is φ = 307286124592.

The previous prime is 309072671969. The next prime is 309072672023. The reversal of 309072672001 is 100276270903.

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 264145630401 + 44927041600 = 513951^2 + 211960^2 .

It is a cyclic number.

It is not a de Polignac number, because 309072672001 - 2⁵ = 309072671969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309072672061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893273446 + ... + 893273791.

It is an arithmetic number, because the mean of its divisors is an integer number (77714804853).

Almost surely, 2^309072672001 is an apocalyptic number.

It is an amenable number.

309072672001 is a deficient number, since it is larger than the sum of its proper divisors (1786547411).

309072672001 is a wasteful number, since it uses less digits than its factorization.

309072672001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786547410.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 309072672001 in words is "three hundred nine billion, seventy-two million, six hundred seventy-two thousand, one".