54236781696 has 64 divisors (see below), whose sum is σ = 144950461920. Its totient is φ = 17967992832.

The previous prime is 54236781661. The next prime is 54236781707. The reversal of 54236781696 is 69618763245.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×54236781696³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370665 + ... + 495848.

Almost surely, 2^54236781696 is an apocalyptic number.

It is an amenable number.

54236781696 is an abundant number, since it is smaller than the sum of its proper divisors (90713680224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54236781696 is a wasteful number, since it uses less digits than its factorization.

54236781696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866693 (or 866681 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 54236781696 in words is "fifty-four billion, two hundred thirty-six million, seven hundred eighty-one thousand, six hundred ninety-six".