40424567537 has 2 divisors, whose sum is σ = 40424567538. Its totient is φ = 40424567536.

The previous prime is 40424567531. The next prime is 40424567581. The reversal of 40424567537 is 73576542404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40092453361 + 332114176 = 200231^2 + 18224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40424567537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40424567491 and 40424567500.

It is not a weakly prime, because it can be changed into another prime (40424567531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20212283768 + 20212283769.

It is an arithmetic number, because the mean of its divisors is an integer number (20212283769).

Almost surely, 2^40424567537 is an apocalyptic number.

It is an amenable number.

40424567537 is a deficient number, since it is larger than the sum of its proper divisors (1).

40424567537 is an equidigital number, since it uses as much as digits as its factorization.

40424567537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 47.

The spelling of 40424567537 in words is "forty billion, four hundred twenty-four million, five hundred sixty-seven thousand, five hundred thirty-seven".