35099978981 has 2 divisors, whose sum is σ = 35099978982. Its totient is φ = 35099978980.

The previous prime is 35099978957. The next prime is 35099978993. The reversal of 35099978981 is 18987999053.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28439786881 + 6660192100 = 168641^2 + 81610^2 .

It is a cyclic number.

It is not a de Polignac number, because 35099978981 - 2¹⁸ = 35099716837 is a prime.

It is a super-2 number, since 2×35099978981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35099977981) 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, 17549989490 + 17549989491.

It is an arithmetic number, because the mean of its divisors is an integer number (17549989491).

Almost surely, 2^35099978981 is an apocalyptic number.

It is an amenable number.

35099978981 is a deficient number, since it is larger than the sum of its proper divisors (1).

35099978981 is an equidigital number, since it uses as much as digits as its factorization.

35099978981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44089920, while the sum is 68.

The spelling of 35099978981 in words is "thirty-five billion, ninety-nine million, nine hundred seventy-eight thousand, nine hundred eighty-one".