28451977413 has 8 divisors (see below), whose sum is σ = 39159710976. Its totient is φ = 18356114400.

The previous prime is 28451977409. The next prime is 28451977441. The reversal of 28451977413 is 31477915482.

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

It is not a de Polignac number, because 28451977413 - 2² = 28451977409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28451977483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152967528 + ... + 152967713.

It is an arithmetic number, because the mean of its divisors is an integer number (4894963872).

Almost surely, 2^28451977413 is an apocalyptic number.

It is an amenable number.

28451977413 is a deficient number, since it is larger than the sum of its proper divisors (10707733563).

28451977413 is a wasteful number, since it uses less digits than its factorization.

28451977413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305935275.

The product of its digits is 1693440, while the sum is 51.

The spelling of 28451977413 in words is "twenty-eight billion, four hundred fifty-one million, nine hundred seventy-seven thousand, four hundred thirteen".