34781131009 has 9 divisors (see below), whose sum is σ = 34957512993. Its totient is φ = 34605637332.

The previous prime is 34781131003. The next prime is 34781131019. The reversal of 34781131009 is 90013118743.

The square root of 34781131009 is 186497.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 34781131009 - 2⁹ = 34781130497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34781131003) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 52778322 + ... + 52778980.

Almost surely, 2^34781131009 is an apocalyptic number.

34781131009 is the 186497-th square number.

34781131009 is the 93249-th centered octagonal number.

It is an amenable number.

34781131009 is a deficient number, since it is larger than the sum of its proper divisors (176381984).

34781131009 is an frugal number, since it uses more digits than its factorization.

34781131009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 34781131009 in words is "thirty-four billion, seven hundred eighty-one million, one hundred thirty-one thousand, nine".