3990301885477 has 2 divisors, whose sum is σ = 3990301885478. Its totient is φ = 3990301885476.

The previous prime is 3990301885441. The next prime is 3990301885519. The reversal of 3990301885477 is 7745881030993.

It is a Cunningham number, because it is equal to 1997574²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3990301885476 + 1 = 1997574^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3990301885477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3990301885417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1995150942738 + 1995150942739.

It is an arithmetic number, because the mean of its divisors is an integer number (1995150942739).

Almost surely, 2^{3990301885477} is an apocalyptic number.

It is an amenable number.

3990301885477 is a deficient number, since it is larger than the sum of its proper divisors (1).

3990301885477 is an equidigital number, since it uses as much as digits as its factorization.

3990301885477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 3990301885477 in words is "three trillion, nine hundred ninety billion, three hundred one million, eight hundred eighty-five thousand, four hundred seventy-seven".