42015455511941 has 2 divisors, whose sum is σ = 42015455511942. Its totient is φ = 42015455511940.

The previous prime is 42015455511919. The next prime is 42015455511971. The reversal of 42015455511941 is 14911555451024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29715908512900 + 12299546999041 = 5451230^2 + 3507071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42015455511941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42015455511971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007727755970 + 21007727755971.

It is an arithmetic number, because the mean of its divisors is an integer number (21007727755971).

Almost surely, 2^{42015455511941} is an apocalyptic number.

It is an amenable number.

42015455511941 is a deficient number, since it is larger than the sum of its proper divisors (1).

42015455511941 is an equidigital number, since it uses as much as digits as its factorization.

42015455511941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720000, while the sum is 47.

The spelling of 42015455511941 in words is "forty-two trillion, fifteen billion, four hundred fifty-five million, five hundred eleven thousand, nine hundred forty-one".