477157009909 has 2 divisors, whose sum is σ = 477157009910. Its totient is φ = 477157009908.

The previous prime is 477157009883. The next prime is 477157009921. The reversal of 477157009909 is 909900751774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278082202225 + 199074807684 = 527335^2 + 446178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477157009909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477157009949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238578504954 + 238578504955.

It is an arithmetic number, because the mean of its divisors is an integer number (238578504955).

Almost surely, 2^477157009909 is an apocalyptic number.

It is an amenable number.

477157009909 is a deficient number, since it is larger than the sum of its proper divisors (1).

477157009909 is an equidigital number, since it uses as much as digits as its factorization.

477157009909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5000940, while the sum is 58.

The spelling of 477157009909 in words is "four hundred seventy-seven billion, one hundred fifty-seven million, nine thousand, nine hundred nine".