42624860477 has 2 divisors, whose sum is σ = 42624860478. Its totient is φ = 42624860476.

The previous prime is 42624860431. The next prime is 42624860483. The reversal of 42624860477 is 77406842624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39494010361 + 3130850116 = 198731^2 + 55954^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42624860477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42624860497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21312430238 + 21312430239.

It is an arithmetic number, because the mean of its divisors is an integer number (21312430239).

Almost surely, 2^42624860477 is an apocalyptic number.

It is an amenable number.

42624860477 is a deficient number, since it is larger than the sum of its proper divisors (1).

42624860477 is an equidigital number, since it uses as much as digits as its factorization.

42624860477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3612672, while the sum is 50.

The spelling of 42624860477 in words is "forty-two billion, six hundred twenty-four million, eight hundred sixty thousand, four hundred seventy-seven".