54851777715845 has 64 divisors (see below), whose sum is σ = 75729873024000. Its totient is φ = 37720352678400.

The previous prime is 54851777715827. The next prime is 54851777715881.

54851777715845 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54851777715845 - 2¹⁰ = 54851777714821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1294293866 + ... + 1294336244.

It is an arithmetic number, because the mean of its divisors is an integer number (1183279266000).

Almost surely, 2^{54851777715845} is an apocalyptic number.

54851777715845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54851777715845 is a deficient number, since it is larger than the sum of its proper divisors (20878095308155).

54851777715845 is a wasteful number, since it uses less digits than its factorization.

54851777715845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44754.

The product of its digits is 1536640000, while the sum is 74.

The spelling of 54851777715845 in words is "fifty-four trillion, eight hundred fifty-one billion, seven hundred seventy-seven million, seven hundred fifteen thousand, eight hundred forty-five".