56783787247 has 8 divisors (see below), whose sum is σ = 62079747840. Its totient is φ = 51510126360.

The previous prime is 56783787167. The next prime is 56783787251. The reversal of 56783787247 is 74278738765.

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

It is a de Polignac number, because none of the positive numbers 2^k-56783787247 is a prime.

It is a super-2 number, since 2×56783787247² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56783787257) 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, 5569597 + ... + 5579782.

It is an arithmetic number, because the mean of its divisors is an integer number (7759968480).

Almost surely, 2^56783787247 is an apocalyptic number.

56783787247 is a deficient number, since it is larger than the sum of its proper divisors (5295960593).

56783787247 is a wasteful number, since it uses less digits than its factorization.

56783787247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11149853.

The product of its digits is 110638080, while the sum is 64.

The spelling of 56783787247 in words is "fifty-six billion, seven hundred eighty-three million, seven hundred eighty-seven thousand, two hundred forty-seven".