93390201977 has 2 divisors, whose sum is σ = 93390201978. Its totient is φ = 93390201976.

The previous prime is 93390201973. The next prime is 93390202033. The reversal of 93390201977 is 77910209339.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47900137321 + 45490064656 = 218861^2 + 213284^2 .

It is a cyclic number.

It is not a de Polignac number, because 93390201977 - 2² = 93390201973 is a prime.

It is not a weakly prime, because it can be changed into another prime (93390201973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46695100988 + 46695100989.

It is an arithmetic number, because the mean of its divisors is an integer number (46695100989).

Almost surely, 2^93390201977 is an apocalyptic number.

It is an amenable number.

93390201977 is a deficient number, since it is larger than the sum of its proper divisors (1).

93390201977 is an equidigital number, since it uses as much as digits as its factorization.

93390201977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 642978, while the sum is 50.

The spelling of 93390201977 in words is "ninety-three billion, three hundred ninety million, two hundred one thousand, nine hundred seventy-seven".