39549028423 has 2 divisors, whose sum is σ = 39549028424. Its totient is φ = 39549028422.

The previous prime is 39549028381. The next prime is 39549028483. The reversal of 39549028423 is 32482094593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39549028423 - 2⁹ = 39549027911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39549028483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19774514211 + 19774514212.

It is an arithmetic number, because the mean of its divisors is an integer number (19774514212).

Almost surely, 2^39549028423 is an apocalyptic number.

39549028423 is a deficient number, since it is larger than the sum of its proper divisors (1).

39549028423 is an equidigital number, since it uses as much as digits as its factorization.

39549028423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 39549028423 in words is "thirty-nine billion, five hundred forty-nine million, twenty-eight thousand, four hundred twenty-three".