54623782388691 has 48 divisors (see below), whose sum is σ = 87529572565344. Its totient is φ = 33920407977984.

The previous prime is 54623782388689. The next prime is 54623782388723. The reversal of 54623782388691 is 19688328732645.

54623782388691 is a `hidden beast` number, since 5 + 4 + 6 + 237 + 8 + 2 + 388 + 6 + 9 + 1 = 666.

54623782388691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54623782388691 - 2¹ = 54623782388689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54623782388491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67758550 + ... + 68559963.

It is an arithmetic number, because the mean of its divisors is an integer number (1823532761778).

Almost surely, 2^{54623782388691} is an apocalyptic number.

54623782388691 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

54623782388691 is a deficient number, since it is larger than the sum of its proper divisors (32905790176653).

54623782388691 is a wasteful number, since it uses less digits than its factorization.

54623782388691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136318642 (or 136318630 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 72.

The spelling of 54623782388691 in words is "fifty-four trillion, six hundred twenty-three billion, seven hundred eighty-two million, three hundred eighty-eight thousand, six hundred ninety-one".