57768805541 has 4 divisors (see below), whose sum is σ = 57808565292. Its totient is φ = 57729045792.

The previous prime is 57768805529. The next prime is 57768805543. The reversal of 57768805541 is 14550886775.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56992012900 + 776792641 = 238730^2 + 27871^2 .

It is a cyclic number.

It is not a de Polignac number, because 57768805541 - 2⁶ = 57768805477 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 (57768805543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19877696 + ... + 19880601.

It is an arithmetic number, because the mean of its divisors is an integer number (14452141323).

Almost surely, 2^57768805541 is an apocalyptic number.

It is an amenable number.

57768805541 is a deficient number, since it is larger than the sum of its proper divisors (39759751).

57768805541 is a wasteful number, since it uses less digits than its factorization.

57768805541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39759750.

The product of its (nonzero) digits is 9408000, while the sum is 56.

The spelling of 57768805541 in words is "fifty-seven billion, seven hundred sixty-eight million, eight hundred five thousand, five hundred forty-one".