1431571428873 has 24 divisors (see below), whose sum is σ = 2116519021760. Its totient is φ = 931919657760.

The previous prime is 1431571428823. The next prime is 1431571428923. The reversal of 1431571428873 is 3788241751341.

1431571428873 is a `hidden beast` number, since 1 + 43 + 1 + 571 + 4 + 28 + 8 + 7 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1431571428823) and next prime (1431571428923).

It is not a de Polignac number, because 1431571428873 - 2⁶ = 1431571428809 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431571428823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 831963 + ... + 1885551.

Almost surely, 2^{1431571428873} is an apocalyptic number.

It is an amenable number.

1431571428873 is a deficient number, since it is larger than the sum of its proper divisors (684947592887).

1431571428873 is a wasteful number, since it uses less digits than its factorization.

1431571428873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057149 (or 1057146 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 1431571428873 in words is "one trillion, four hundred thirty-one billion, five hundred seventy-one million, four hundred twenty-eight thousand, eight hundred seventy-three".