54648688684646 has 32 divisors (see below), whose sum is σ = 93764158709760. Its totient is φ = 23400700985376.

The previous prime is 54648688684643. The next prime is 54648688684747. The reversal of 54648688684646 is 64648688684645.

It is a super-2 number, since 2×54648688684646² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54648688684643) 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, 87837755 + ... + 88457721.

It is an arithmetic number, because the mean of its divisors is an integer number (2930129959680).

Almost surely, 2^{54648688684646} is an apocalyptic number.

54648688684646 is a deficient number, since it is larger than the sum of its proper divisors (39115470025114).

54648688684646 is a wasteful number, since it uses less digits than its factorization.

54648688684646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625388.

The product of its digits is 40768634880, while the sum is 83.

Subtracting 54648688684646 from its reverse (64648688684645), we obtain a palindrome (9999999999999).

The spelling of 54648688684646 in words is "fifty-four trillion, six hundred forty-eight billion, six hundred eighty-eight million, six hundred eighty-four thousand, six hundred forty-six".