42807037913 has 2 divisors, whose sum is σ = 42807037914. Its totient is φ = 42807037912.

The previous prime is 42807037891. The next prime is 42807037919. The reversal of 42807037913 is 31973070824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42449185024 + 357852889 = 206032^2 + 18917^2 .

It is a cyclic number.

It is not a de Polignac number, because 42807037913 - 2⁶ = 42807037849 is a prime.

It is not a weakly prime, because it can be changed into another prime (42807037919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21403518956 + 21403518957.

It is an arithmetic number, because the mean of its divisors is an integer number (21403518957).

Almost surely, 2^42807037913 is an apocalyptic number.

It is an amenable number.

42807037913 is a deficient number, since it is larger than the sum of its proper divisors (1).

42807037913 is an equidigital number, since it uses as much as digits as its factorization.

42807037913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 42807037913 in words is "forty-two billion, eight hundred seven million, thirty-seven thousand, nine hundred thirteen".