35197136881 has 9 divisors (see below), whose sum is σ = 36042971769. Its totient is φ = 34370719236.

The previous prime is 35197136879. The next prime is 35197136893. The reversal of 35197136881 is 18863179153.

The square root of 35197136881 is 187609.

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

It is not a de Polignac number, because 35197136881 - 2¹ = 35197136879 is a prime.

It is a super-2 number, since 2×35197136881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35197136801) 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, 8065006 + ... + 8069368.

It is an arithmetic number, because the mean of its divisors is an integer number (4004774641).

Almost surely, 2^35197136881 is an apocalyptic number.

35197136881 is the 187609-th square number.

35197136881 is the 93805-th centered octagonal number.

It is an amenable number.

35197136881 is a deficient number, since it is larger than the sum of its proper divisors (845834888).

35197136881 is an frugal number, since it uses more digits than its factorization.

35197136881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812 (or 4406 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The spelling of 35197136881 in words is "thirty-five billion, one hundred ninety-seven million, one hundred thirty-six thousand, eight hundred eighty-one".