57771968101 has 4 divisors (see below), whose sum is σ = 57827895532. Its totient is φ = 57716040672.

The previous prime is 57771968057. The next prime is 57771968129. The reversal of 57771968101 is 10186917775.

It is a happy number.

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 43711937476 + 14060030625 = 209074^2 + 118575^2 .

It is a cyclic number.

It is not a de Polignac number, because 57771968101 - 2¹⁷ = 57771837029 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 (57771968131) 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, 27962166 + ... + 27964231.

It is an arithmetic number, because the mean of its divisors is an integer number (14456973883).

Almost surely, 2^57771968101 is an apocalyptic number.

It is an amenable number.

57771968101 is a deficient number, since it is larger than the sum of its proper divisors (55927431).

57771968101 is a wasteful number, since it uses less digits than its factorization.

57771968101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55927430.

The product of its (nonzero) digits is 740880, while the sum is 52.

The spelling of 57771968101 in words is "fifty-seven billion, seven hundred seventy-one million, nine hundred sixty-eight thousand, one hundred one".