35981811806 has 8 divisors (see below), whose sum is σ = 55289125584. Its totient is φ = 17552103280.

The previous prime is 35981811791. The next prime is 35981811851. The reversal of 35981811806 is 60811818953.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219401210 + ... + 219401373.

It is an arithmetic number, because the mean of its divisors is an integer number (6911140698).

Almost surely, 2^35981811806 is an apocalyptic number.

35981811806 is a deficient number, since it is larger than the sum of its proper divisors (19307313778).

35981811806 is a wasteful number, since it uses less digits than its factorization.

35981811806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438802626.

The product of its (nonzero) digits is 414720, while the sum is 50.

The spelling of 35981811806 in words is "thirty-five billion, nine hundred eighty-one million, eight hundred eleven thousand, eight hundred six".