57621260771 has 2 divisors, whose sum is σ = 57621260772. Its totient is φ = 57621260770.

The previous prime is 57621260729. The next prime is 57621260797. The reversal of 57621260771 is 17706212675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57621260771 - 2⁶ = 57621260707 is a prime.

It is not a weakly prime, because it can be changed into another prime (57621260171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28810630385 + 28810630386.

It is an arithmetic number, because the mean of its divisors is an integer number (28810630386).

Almost surely, 2^57621260771 is an apocalyptic number.

57621260771 is a deficient number, since it is larger than the sum of its proper divisors (1).

57621260771 is an equidigital number, since it uses as much as digits as its factorization.

57621260771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 57621260771 in words is "fifty-seven billion, six hundred twenty-one million, two hundred sixty thousand, seven hundred seventy-one".