42473029407491 has 2 divisors, whose sum is σ = 42473029407492. Its totient is φ = 42473029407490.

The previous prime is 42473029407433. The next prime is 42473029407511. The reversal of 42473029407491 is 19470492037424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42473029407491 - 2⁶ = 42473029407427 is a prime.

It is not a weakly prime, because it can be changed into another prime (42473029407421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21236514703745 + 21236514703746.

It is an arithmetic number, because the mean of its divisors is an integer number (21236514703746).

Almost surely, 2^{42473029407491} is an apocalyptic number.

42473029407491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42473029407491 is an equidigital number, since it uses as much as digits as its factorization.

42473029407491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 42473029407491 in words is "forty-two trillion, four hundred seventy-three billion, twenty-nine million, four hundred seven thousand, four hundred ninety-one".