977540529957787 has 2 divisors, whose sum is σ = 977540529957788. Its totient is φ = 977540529957786.

The previous prime is 977540529957767. The next prime is 977540529957811. The reversal of 977540529957787 is 787759925045779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 977540529957787 - 2¹¹ = 977540529955739 is a prime.

It is not a weakly prime, because it can be changed into another prime (977540529957707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488770264978893 + 488770264978894.

It is an arithmetic number, because the mean of its divisors is an integer number (488770264978894).

Almost surely, 2^{977540529957787} is an apocalyptic number.

977540529957787 is a deficient number, since it is larger than the sum of its proper divisors (1).

977540529957787 is an equidigital number, since it uses as much as digits as its factorization.

977540529957787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98018424000, while the sum is 91.

The spelling of 977540529957787 in words is "nine hundred seventy-seven trillion, five hundred forty billion, five hundred twenty-nine million, nine hundred fifty-seven thousand, seven hundred eighty-seven".