42072999127 has 2 divisors, whose sum is σ = 42072999128. Its totient is φ = 42072999126.

The previous prime is 42072999097. The next prime is 42072999139. The reversal of 42072999127 is 72199927024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42072999127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42072999187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036499563 + 21036499564.

It is an arithmetic number, because the mean of its divisors is an integer number (21036499564).

Almost surely, 2^42072999127 is an apocalyptic number.

42072999127 is a deficient number, since it is larger than the sum of its proper divisors (1).

42072999127 is an equidigital number, since it uses as much as digits as its factorization.

42072999127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 42072999127 in words is "forty-two billion, seventy-two million, nine hundred ninety-nine thousand, one hundred twenty-seven".