32897913881 has 4 divisors (see below), whose sum is σ = 37597615872. Its totient is φ = 28198211892.

The previous prime is 32897913833. The next prime is 32897913911. The reversal of 32897913881 is 18831979823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32897913881 - 2¹⁸ = 32897651737 is a prime.

It is a super-2 number, since 2×32897913881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32897913881.

It is not an unprimeable number, because it can be changed into a prime (32897913281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349850985 + ... + 2349850998.

It is an arithmetic number, because the mean of its divisors is an integer number (9399403968).

Almost surely, 2^32897913881 is an apocalyptic number.

It is an amenable number.

32897913881 is a deficient number, since it is larger than the sum of its proper divisors (4699701991).

32897913881 is an equidigital number, since it uses as much as digits as its factorization.

32897913881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699701990.

The product of its digits is 5225472, while the sum is 59.

The spelling of 32897913881 in words is "thirty-two billion, eight hundred ninety-seven million, nine hundred thirteen thousand, eight hundred eighty-one".