56751747447 has 8 divisors (see below), whose sum is σ = 75679774720. Its totient is φ = 37829109240.

The previous prime is 56751747427. The next prime is 56751747449. The reversal of 56751747447 is 74474715765.

It is a happy number.

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

It is not a de Polignac number, because 56751747447 - 2⁶ = 56751747383 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 (56751747449) 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, 1322629 + ... + 1364862.

It is an arithmetic number, because the mean of its divisors is an integer number (9459971840).

Almost surely, 2^56751747447 is an apocalyptic number.

56751747447 is a deficient number, since it is larger than the sum of its proper divisors (18928027273).

56751747447 is a wasteful number, since it uses less digits than its factorization.

56751747447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694533.

The product of its digits is 23049600, while the sum is 57.

The spelling of 56751747447 in words is "fifty-six billion, seven hundred fifty-one million, seven hundred forty-seven thousand, four hundred forty-seven".