32001869261 has 2 divisors, whose sum is σ = 32001869262. Its totient is φ = 32001869260.

The previous prime is 32001869243. The next prime is 32001869267. The reversal of 32001869261 is 16296810023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26266684900 + 5735184361 = 162070^2 + 75731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32001869261 is a prime.

It is a super-2 number, since 2×32001869261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32001869267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16000934630 + 16000934631.

It is an arithmetic number, because the mean of its divisors is an integer number (16000934631).

Almost surely, 2^32001869261 is an apocalyptic number.

It is an amenable number.

32001869261 is a deficient number, since it is larger than the sum of its proper divisors (1).

32001869261 is an equidigital number, since it uses as much as digits as its factorization.

32001869261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 32001869261 in words is "thirty-two billion, one million, eight hundred sixty-nine thousand, two hundred sixty-one".