42620448306451 has 2 divisors, whose sum is σ = 42620448306452. Its totient is φ = 42620448306450.

The previous prime is 42620448306439. The next prime is 42620448306577. The reversal of 42620448306451 is 15460384402624.

42620448306451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42620448306451 - 2⁵ = 42620448306419 is a prime.

It is a super-2 number, since 2×42620448306451² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42620448306395 and 42620448306404.

It is not a weakly prime, because it can be changed into another prime (42620448306421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21310224153225 + 21310224153226.

It is an arithmetic number, because the mean of its divisors is an integer number (21310224153226).

Almost surely, 2^{42620448306451} is an apocalyptic number.

42620448306451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42620448306451 is an equidigital number, since it uses as much as digits as its factorization.

42620448306451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4423680, while the sum is 49.

The spelling of 42620448306451 in words is "forty-two trillion, six hundred twenty billion, four hundred forty-eight million, three hundred six thousand, four hundred fifty-one".