42045311479 has 2 divisors, whose sum is σ = 42045311480. Its totient is φ = 42045311478.

The previous prime is 42045311471. The next prime is 42045311617. The reversal of 42045311479 is 97411354024.

42045311479 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 42045311479 - 2³ = 42045311471 is a prime.

It is a super-2 number, since 2×42045311479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42045311471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21022655739 + 21022655740.

It is an arithmetic number, because the mean of its divisors is an integer number (21022655740).

Almost surely, 2^42045311479 is an apocalyptic number.

42045311479 is a deficient number, since it is larger than the sum of its proper divisors (1).

42045311479 is an equidigital number, since it uses as much as digits as its factorization.

42045311479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 42045311479 in words is "forty-two billion, forty-five million, three hundred eleven thousand, four hundred seventy-nine".