69801320977 has 2 divisors, whose sum is σ = 69801320978. Its totient is φ = 69801320976.

The previous prime is 69801320933. The next prime is 69801320999. The reversal of 69801320977 is 77902310896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65923643536 + 3877677441 = 256756^2 + 62271^2 .

It is a cyclic number.

It is not a de Polignac number, because 69801320977 - 2²³ = 69792932369 is a prime.

It is not a weakly prime, because it can be changed into another prime (69801320077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34900660488 + 34900660489.

It is an arithmetic number, because the mean of its divisors is an integer number (34900660489).

Almost surely, 2^69801320977 is an apocalyptic number.

It is an amenable number.

69801320977 is a deficient number, since it is larger than the sum of its proper divisors (1).

69801320977 is an equidigital number, since it uses as much as digits as its factorization.

69801320977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 69801320977 in words is "sixty-nine billion, eight hundred one million, three hundred twenty thousand, nine hundred seventy-seven".