4015400241491 has 2 divisors, whose sum is σ = 4015400241492. Its totient is φ = 4015400241490.

The previous prime is 4015400241481. The next prime is 4015400241521. The reversal of 4015400241491 is 1941420045104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4015400241491 is a prime.

It is a super-2 number, since 2×4015400241491² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4015400241431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007700120745 + 2007700120746.

It is an arithmetic number, because the mean of its divisors is an integer number (2007700120746).

Almost surely, 2^{4015400241491} is an apocalyptic number.

4015400241491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4015400241491 is an equidigital number, since it uses as much as digits as its factorization.

4015400241491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 4015400241491 its reverse (1941420045104), we get a palindrome (5956820286595).

The spelling of 4015400241491 in words is "four trillion, fifteen billion, four hundred million, two hundred forty-one thousand, four hundred ninety-one".