32421046391 has 2 divisors, whose sum is σ = 32421046392. Its totient is φ = 32421046390.

The previous prime is 32421046387. The next prime is 32421046429. The reversal of 32421046391 is 19364012423.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32421046391 - 2² = 32421046387 is a prime.

It is a super-2 number, since 2×32421046391² (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 (32421048391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16210523195 + 16210523196.

It is an arithmetic number, because the mean of its divisors is an integer number (16210523196).

Almost surely, 2^32421046391 is an apocalyptic number.

32421046391 is a deficient number, since it is larger than the sum of its proper divisors (1).

32421046391 is an equidigital number, since it uses as much as digits as its factorization.

32421046391 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 35.

The spelling of 32421046391 in words is "thirty-two billion, four hundred twenty-one million, forty-six thousand, three hundred ninety-one".