54656747686 has 16 divisors (see below), whose sum is σ = 83418627600. Its totient is φ = 26851026688.

The previous prime is 54656747681. The next prime is 54656747701. The reversal of 54656747686 is 68674765645.

It is a super-2 number, since 2×54656747686² (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 (54656747681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104670 + ... + 346798.

It is an arithmetic number, because the mean of its divisors is an integer number (5213664225).

Almost surely, 2^54656747686 is an apocalyptic number.

54656747686 is a deficient number, since it is larger than the sum of its proper divisors (28761879914).

54656747686 is a wasteful number, since it uses less digits than its factorization.

54656747686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244103.

The product of its digits is 203212800, while the sum is 64.

The spelling of 54656747686 in words is "fifty-four billion, six hundred fifty-six million, seven hundred forty-seven thousand, six hundred eighty-six".