35661891490 has 16 divisors (see below), whose sum is σ = 64912658040. Its totient is φ = 14104478080.

The previous prime is 35661891467. The next prime is 35661891493. The reversal of 35661891490 is 9419816653.

It can be written as a sum of positive squares in 4 ways, for example, as 29867789329 + 5794102161 = 172823^2 + 76119^2 .

It is not an unprimeable number, because it can be changed into a prime (35661891493) 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 in 7 ways as a sum of consecutive naturals, for example, 20033881 + ... + 20035660.

Almost surely, 2^35661891490 is an apocalyptic number.

35661891490 is a deficient number, since it is larger than the sum of its proper divisors (29250766550).

35661891490 is a wasteful number, since it uses less digits than its factorization.

35661891490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40069637.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 35661891490 in words is "thirty-five billion, six hundred sixty-one million, eight hundred ninety-one thousand, four hundred ninety".