40724715677 has 2 divisors, whose sum is σ = 40724715678. Its totient is φ = 40724715676.

The previous prime is 40724715643. The next prime is 40724715683. The reversal of 40724715677 is 77651742704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40569613561 + 155102116 = 201419^2 + 12454^2 .

It is a cyclic number.

It is not a de Polignac number, because 40724715677 - 2¹⁴ = 40724699293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40724735677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20362357838 + 20362357839.

It is an arithmetic number, because the mean of its divisors is an integer number (20362357839).

Almost surely, 2^40724715677 is an apocalyptic number.

It is an amenable number.

40724715677 is a deficient number, since it is larger than the sum of its proper divisors (1).

40724715677 is an equidigital number, since it uses as much as digits as its factorization.

40724715677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304960, while the sum is 50.

The spelling of 40724715677 in words is "forty billion, seven hundred twenty-four million, seven hundred fifteen thousand, six hundred seventy-seven".