56328147877 has 2 divisors, whose sum is σ = 56328147878. Its totient is φ = 56328147876.

The previous prime is 56328147829. The next prime is 56328147881. The reversal of 56328147877 is 77874182365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55937453121 + 390694756 = 236511^2 + 19766^2 .

It is a cyclic number.

It is not a de Polignac number, because 56328147877 - 2⁷ = 56328147749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56328147077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28164073938 + 28164073939.

It is an arithmetic number, because the mean of its divisors is an integer number (28164073939).

Almost surely, 2^56328147877 is an apocalyptic number.

It is an amenable number.

56328147877 is a deficient number, since it is larger than the sum of its proper divisors (1).

56328147877 is an equidigital number, since it uses as much as digits as its factorization.

56328147877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 58.

The spelling of 56328147877 in words is "fifty-six billion, three hundred twenty-eight million, one hundred forty-seven thousand, eight hundred seventy-seven".