35557780813 has 2 divisors, whose sum is σ = 35557780814. Its totient is φ = 35557780812.

The previous prime is 35557780807. The next prime is 35557780823. The reversal of 35557780813 is 31808775553.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34416557289 + 1141223524 = 185517^2 + 33782^2 .

It is a cyclic number.

It is not a de Polignac number, because 35557780813 - 2²¹ = 35555683661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35557780823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17778890406 + 17778890407.

It is an arithmetic number, because the mean of its divisors is an integer number (17778890407).

Almost surely, 2^35557780813 is an apocalyptic number.

It is an amenable number.

35557780813 is a deficient number, since it is larger than the sum of its proper divisors (1).

35557780813 is an equidigital number, since it uses as much as digits as its factorization.

35557780813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 35557780813 in words is "thirty-five billion, five hundred fifty-seven million, seven hundred eighty thousand, eight hundred thirteen".