54812779813 has 8 divisors (see below), whose sum is σ = 60129816480. Its totient is φ = 49551419280.

The previous prime is 54812779807. The next prime is 54812779867. The reversal of 54812779813 is 31897721845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54812779813 - 2¹³ = 54812771621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54812779313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13916970 + ... + 13920907.

It is an arithmetic number, because the mean of its divisors is an integer number (7516227060).

Almost surely, 2^54812779813 is an apocalyptic number.

It is an amenable number.

54812779813 is a deficient number, since it is larger than the sum of its proper divisors (5317036667).

54812779813 is a wasteful number, since it uses less digits than its factorization.

54812779813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27838067.

The product of its digits is 3386880, while the sum is 55.

The spelling of 54812779813 in words is "fifty-four billion, eight hundred twelve million, seven hundred seventy-nine thousand, eight hundred thirteen".