39628477573 has 2 divisors, whose sum is σ = 39628477574. Its totient is φ = 39628477572.

The previous prime is 39628477547. The next prime is 39628477607. The reversal of 39628477573 is 37577482693.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35814427009 + 3814050564 = 189247^2 + 61758^2 .

It is a cyclic number.

It is not a de Polignac number, because 39628477573 - 2²⁵ = 39594923141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39628477673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19814238786 + 19814238787.

It is an arithmetic number, because the mean of its divisors is an integer number (19814238787).

Almost surely, 2^39628477573 is an apocalyptic number.

It is an amenable number.

39628477573 is a deficient number, since it is larger than the sum of its proper divisors (1).

39628477573 is an equidigital number, since it uses as much as digits as its factorization.

39628477573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53343360, while the sum is 61.

The spelling of 39628477573 in words is "thirty-nine billion, six hundred twenty-eight million, four hundred seventy-seven thousand, five hundred seventy-three".