56446770399 has 16 divisors (see below), whose sum is σ = 76309516800. Its totient is φ = 37108783296.

The previous prime is 56446770397. The next prime is 56446770433. The reversal of 56446770399 is 99307764465.

It is not a de Polignac number, because 56446770399 - 2¹ = 56446770397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56446770397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44532 + ... + 338934.

It is an arithmetic number, because the mean of its divisors is an integer number (4769344800).

Almost surely, 2^56446770399 is an apocalyptic number.

56446770399 is a deficient number, since it is larger than the sum of its proper divisors (19862746401).

56446770399 is a wasteful number, since it uses less digits than its factorization.

56446770399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295294.

The product of its (nonzero) digits is 34292160, while the sum is 60.

The spelling of 56446770399 in words is "fifty-six billion, four hundred forty-six million, seven hundred seventy thousand, three hundred ninety-nine".