57621252673 has 2 divisors, whose sum is σ = 57621252674. Its totient is φ = 57621252672.

The previous prime is 57621252643. The next prime is 57621252679. The reversal of 57621252673 is 37625212675.

57621252673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54446155569 + 3175097104 = 233337^2 + 56348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57621252673 is a prime.

It is not a weakly prime, because it can be changed into another prime (57621252679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28810626336 + 28810626337.

It is an arithmetic number, because the mean of its divisors is an integer number (28810626337).

Almost surely, 2^57621252673 is an apocalyptic number.

It is an amenable number.

57621252673 is a deficient number, since it is larger than the sum of its proper divisors (1).

57621252673 is an equidigital number, since it uses as much as digits as its factorization.

57621252673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 46.

The spelling of 57621252673 in words is "fifty-seven billion, six hundred twenty-one million, two hundred fifty-two thousand, six hundred seventy-three".