28880966901 has 8 divisors (see below), whose sum is σ = 39548711584. Its totient is φ = 18733600080.

The previous prime is 28880966843. The next prime is 28880966903. The reversal of 28880966901 is 10966908882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28880966901 - 2⁶ = 28880966837 is a prime.

It is a super-2 number, since 2×28880966901² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28880966903) 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 7 ways as a sum of consecutive naturals, for example, 130094335 + ... + 130094556.

It is an arithmetic number, because the mean of its divisors is an integer number (4943588948).

Almost surely, 2^28880966901 is an apocalyptic number.

It is an amenable number.

28880966901 is a deficient number, since it is larger than the sum of its proper divisors (10667744683).

28880966901 is a wasteful number, since it uses less digits than its factorization.

28880966901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260188931.

The product of its (nonzero) digits is 2985984, while the sum is 57.

The spelling of 28880966901 in words is "twenty-eight billion, eight hundred eighty million, nine hundred sixty-six thousand, nine hundred one".