56411721763 has 4 divisors (see below), whose sum is σ = 56429811360. Its totient is φ = 56393632168.

The previous prime is 56411721761. The next prime is 56411721797. The reversal of 56411721763 is 36712711465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56411721763 - 2¹ = 56411721761 is a prime.

It is a super-2 number, since 2×56411721763² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56411721761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9040120 + ... + 9046357.

It is an arithmetic number, because the mean of its divisors is an integer number (14107452840).

Almost surely, 2^56411721763 is an apocalyptic number.

56411721763 is a deficient number, since it is larger than the sum of its proper divisors (18089597).

56411721763 is a wasteful number, since it uses less digits than its factorization.

56411721763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18089596.

The product of its digits is 211680, while the sum is 43.

The spelling of 56411721763 in words is "fifty-six billion, four hundred eleven million, seven hundred twenty-one thousand, seven hundred sixty-three".