35412631205981 has 16 divisors (see below), whose sum is σ = 38430592164720. Its totient is φ = 32499404881920.

The previous prime is 35412631205869. The next prime is 35412631206031. The reversal of 35412631205981 is 18950213621453.

It can be written as a sum of positive squares in 8 ways, for example, as 3522791148100 + 31889840057881 = 1876910^2 + 5647109^2 .

It is a cyclic number.

It is not a de Polignac number, because 35412631205981 - 2²² = 35412627011677 is a prime.

It is a super-2 number, since 2×35412631205981² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35412631205381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12131546 + ... + 14764811.

It is an arithmetic number, because the mean of its divisors is an integer number (2401912010295).

Almost surely, 2^{35412631205981} is an apocalyptic number.

It is an amenable number.

35412631205981 is a deficient number, since it is larger than the sum of its proper divisors (3017960958739).

35412631205981 is a wasteful number, since it uses less digits than its factorization.

35412631205981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26898304.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 35412631205981 in words is "thirty-five trillion, four hundred twelve billion, six hundred thirty-one million, two hundred five thousand, nine hundred eighty-one".