32454155491 has 2 divisors, whose sum is σ = 32454155492. Its totient is φ = 32454155490.

The previous prime is 32454155477. The next prime is 32454155549. The reversal of 32454155491 is 19455145423.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32454155491 - 2²⁷ = 32319937763 is a prime.

It is not a weakly prime, because it can be changed into another prime (32454155441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16227077745 + 16227077746.

It is an arithmetic number, because the mean of its divisors is an integer number (16227077746).

Almost surely, 2^32454155491 is an apocalyptic number.

32454155491 is a deficient number, since it is larger than the sum of its proper divisors (1).

32454155491 is an equidigital number, since it uses as much as digits as its factorization.

32454155491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 43.

The spelling of 32454155491 in words is "thirty-two billion, four hundred fifty-four million, one hundred fifty-five thousand, four hundred ninety-one".