90610625064977 has 2 divisors, whose sum is σ = 90610625064978. Its totient is φ = 90610625064976.

The previous prime is 90610625064929. The next prime is 90610625064991. The reversal of 90610625064977 is 77946052601609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90591638705296 + 18986359681 = 9517964^2 + 137791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90610625064977 is a prime.

It is not a weakly prime, because it can be changed into another prime (90610625064997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45305312532488 + 45305312532489.

It is an arithmetic number, because the mean of its divisors is an integer number (45305312532489).

Almost surely, 2^{90610625064977} is an apocalyptic number.

It is an amenable number.

90610625064977 is a deficient number, since it is larger than the sum of its proper divisors (1).

90610625064977 is an equidigital number, since it uses as much as digits as its factorization.

90610625064977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34292160, while the sum is 62.

The spelling of 90610625064977 in words is "ninety trillion, six hundred ten billion, six hundred twenty-five million, sixty-four thousand, nine hundred seventy-seven".