28964523757 has 8 divisors (see below), whose sum is σ = 31303573560. Its totient is φ = 26641332480.

The previous prime is 28964523751. The next prime is 28964523793. The reversal of 28964523757 is 75732546982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7635089641 + 21329434116 = 87379^2 + 146046^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28964523757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28964523751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3960832 + ... + 3968137.

It is an arithmetic number, because the mean of its divisors is an integer number (3912946695).

Almost surely, 2^28964523757 is an apocalyptic number.

It is an amenable number.

28964523757 is a deficient number, since it is larger than the sum of its proper divisors (2339049803).

28964523757 is a wasteful number, since it uses less digits than its factorization.

28964523757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929263.

The product of its digits is 25401600, while the sum is 58.

It can be divided in two parts, 2896452 and 3757, that added together give a square (2900209 = 1703²).

The spelling of 28964523757 in words is "twenty-eight billion, nine hundred sixty-four million, five hundred twenty-three thousand, seven hundred fifty-seven".