977540529957811 has 2 divisors, whose sum is σ = 977540529957812. Its totient is φ = 977540529957810.

The previous prime is 977540529957787. The next prime is 977540529957857. The reversal of 977540529957811 is 118759925045779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 977540529957811 - 2⁷ = 977540529957683 is a prime.

It is a super-2 number, since 2×977540529957811² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (977540529955811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488770264978905 + 488770264978906.

It is an arithmetic number, because the mean of its divisors is an integer number (488770264978906).

Almost surely, 2^{977540529957811} is an apocalyptic number.

977540529957811 is a deficient number, since it is larger than the sum of its proper divisors (1).

977540529957811 is an equidigital number, since it uses as much as digits as its factorization.

977540529957811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000376000, while the sum is 79.

The spelling of 977540529957811 in words is "nine hundred seventy-seven trillion, five hundred forty billion, five hundred twenty-nine million, nine hundred fifty-seven thousand, eight hundred eleven".