32540912881 has 3 divisors (see below), whose sum is σ = 32541093273. Its totient is φ = 32540732490.

The previous prime is 32540912861. The next prime is 32540912891. The reversal of 32540912881 is 18821904523.

The square root of 32540912881 is 180391.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18821904523 = 115657 ⋅162739.

It is not a de Polignac number, because 32540912881 - 2⁵ = 32540912849 is a prime.

It is a super-2 number, since 2×32540912881² (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 (32540912801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 90196 + ... + 270586.

It is an arithmetic number, because the mean of its divisors is an integer number (10847031091).

Almost surely, 2^32540912881 is an apocalyptic number.

32540912881 is the 180391-st square number.

32540912881 is the 90196-th centered octagonal number.

It is an amenable number.

32540912881 is a deficient number, since it is larger than the sum of its proper divisors (180392).

32540912881 is an frugal number, since it uses more digits than its factorization.

32540912881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360782 (or 180391 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 32540912881 in words is "thirty-two billion, five hundred forty million, nine hundred twelve thousand, eight hundred eighty-one".