39572990029 has 2 divisors, whose sum is σ = 39572990030. Its totient is φ = 39572990028.

The previous prime is 39572989987. The next prime is 39572990057. The reversal of 39572990029 is 92009927593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39520644804 + 52345225 = 198798^2 + 7235^2 .

It is a cyclic number.

It is not a de Polignac number, because 39572990029 - 2⁷ = 39572989901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39572990059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19786495014 + 19786495015.

It is an arithmetic number, because the mean of its divisors is an integer number (19786495015).

Almost surely, 2^39572990029 is an apocalyptic number.

It is an amenable number.

39572990029 is a deficient number, since it is larger than the sum of its proper divisors (1).

39572990029 is an equidigital number, since it uses as much as digits as its factorization.

39572990029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2755620, while the sum is 55.

The spelling of 39572990029 in words is "thirty-nine billion, five hundred seventy-two million, nine hundred ninety thousand, twenty-nine".