442505707148951 has 2 divisors, whose sum is σ = 442505707148952. Its totient is φ = 442505707148950.

The previous prime is 442505707148941. The next prime is 442505707149059. The reversal of 442505707148951 is 159841707505244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442505707148951 - 2²² = 442505702954647 is a prime.

It is a super-2 number, since 2×442505707148951² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442505707148941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221252853574475 + 221252853574476.

It is an arithmetic number, because the mean of its divisors is an integer number (221252853574476).

Almost surely, 2^{442505707148951} is an apocalyptic number.

442505707148951 is a deficient number, since it is larger than the sum of its proper divisors (1).

442505707148951 is an equidigital number, since it uses as much as digits as its factorization.

442505707148951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448000, while the sum is 62.

The spelling of 442505707148951 in words is "four hundred forty-two trillion, five hundred five billion, seven hundred seven million, one hundred forty-eight thousand, nine hundred fifty-one".