15486247040431 has 2 divisors, whose sum is σ = 15486247040432. Its totient is φ = 15486247040430.

The previous prime is 15486247040413. The next prime is 15486247040477. The reversal of 15486247040431 is 13404074268451.

Together with previous prime (15486247040413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15486247040431 is a prime.

It is a super-2 number, since 2×15486247040431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15486247044431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7743123520215 + 7743123520216.

It is an arithmetic number, because the mean of its divisors is an integer number (7743123520216).

Almost surely, 2^{15486247040431} is an apocalyptic number.

15486247040431 is a deficient number, since it is larger than the sum of its proper divisors (1).

15486247040431 is an equidigital number, since it uses as much as digits as its factorization.

15486247040431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 15486247040431 in words is "fifteen trillion, four hundred eighty-six billion, two hundred forty-seven million, forty thousand, four hundred thirty-one".