42497856319 has 2 divisors, whose sum is σ = 42497856320. Its totient is φ = 42497856318.

The previous prime is 42497856287. The next prime is 42497856397. The reversal of 42497856319 is 91365879424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42497856319 - 2⁵ = 42497856287 is a prime.

It is a super-2 number, since 2×42497856319² (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 (42497856119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21248928159 + 21248928160.

It is an arithmetic number, because the mean of its divisors is an integer number (21248928160).

Almost surely, 2^42497856319 is an apocalyptic number.

42497856319 is a deficient number, since it is larger than the sum of its proper divisors (1).

42497856319 is an equidigital number, since it uses as much as digits as its factorization.

42497856319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 42497856319 in words is "forty-two billion, four hundred ninety-seven million, eight hundred fifty-six thousand, three hundred nineteen".