42072999097 has 2 divisors, whose sum is σ = 42072999098. Its totient is φ = 42072999096.

The previous prime is 42072999091. The next prime is 42072999127. The reversal of 42072999097 is 79099927024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24399689616 + 17673309481 = 156204^2 + 132941^2 .

It is a cyclic number.

It is not a de Polignac number, because 42072999097 - 2⁷ = 42072998969 is a prime.

It is not a weakly prime, because it can be changed into another prime (42072999091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036499548 + 21036499549.

It is an arithmetic number, because the mean of its divisors is an integer number (21036499549).

Almost surely, 2^42072999097 is an apocalyptic number.

It is an amenable number.

42072999097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42072999097 is an equidigital number, since it uses as much as digits as its factorization.

42072999097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 42072999097 in words is "forty-two billion, seventy-two million, nine hundred ninety-nine thousand, ninety-seven".