1431715150891 has 2 divisors, whose sum is σ = 1431715150892. Its totient is φ = 1431715150890.

The previous prime is 1431715150823. The next prime is 1431715150909. The reversal of 1431715150891 is 1980515171341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1431715150891 - 2⁷ = 1431715150763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431715150391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715857575445 + 715857575446.

It is an arithmetic number, because the mean of its divisors is an integer number (715857575446).

Almost surely, 2^{1431715150891} is an apocalyptic number.

1431715150891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431715150891 is an equidigital number, since it uses as much as digits as its factorization.

1431715150891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 46.

The spelling of 1431715150891 in words is "one trillion, four hundred thirty-one billion, seven hundred fifteen million, one hundred fifty thousand, eight hundred ninety-one".