39873682523 has 2 divisors, whose sum is σ = 39873682524. Its totient is φ = 39873682522.

The previous prime is 39873682489. The next prime is 39873682531. The reversal of 39873682523 is 32528637893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39873682523 - 2³⁴ = 22693813339 is a prime.

It is not a weakly prime, because it can be changed into another prime (39873684523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19936841261 + 19936841262.

It is an arithmetic number, because the mean of its divisors is an integer number (19936841262).

Almost surely, 2^39873682523 is an apocalyptic number.

39873682523 is a deficient number, since it is larger than the sum of its proper divisors (1).

39873682523 is an equidigital number, since it uses as much as digits as its factorization.

39873682523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 56.

The spelling of 39873682523 in words is "thirty-nine billion, eight hundred seventy-three million, six hundred eighty-two thousand, five hundred twenty-three".