39472579457 has 2 divisors, whose sum is σ = 39472579458. Its totient is φ = 39472579456.

The previous prime is 39472579423. The next prime is 39472579483. The reversal of 39472579457 is 75497527493.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35919346576 + 3553232881 = 189524^2 + 59609^2 .

It is a cyclic number.

It is not a de Polignac number, because 39472579457 - 2²⁴ = 39455802241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39472579457.

It is not a weakly prime, because it can be changed into another prime (39472570457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19736289728 + 19736289729.

It is an arithmetic number, because the mean of its divisors is an integer number (19736289729).

Almost surely, 2^39472579457 is an apocalyptic number.

It is an amenable number.

39472579457 is a deficient number, since it is larger than the sum of its proper divisors (1).

39472579457 is an equidigital number, since it uses as much as digits as its factorization.

39472579457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66679200, while the sum is 62.

The spelling of 39472579457 in words is "thirty-nine billion, four hundred seventy-two million, five hundred seventy-nine thousand, four hundred fifty-seven".