1442858728731 has 32 divisors (see below), whose sum is σ = 2211440279040. Its totient is φ = 819693451776.

The previous prime is 1442858728699. The next prime is 1442858728771. The reversal of 1442858728731 is 1378278582441.

It is not a de Polignac number, because 1442858728731 - 2⁵ = 1442858728699 is a prime.

It is a super-2 number, since 2×1442858728731² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1442858728771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16936915 + ... + 17021891.

It is an arithmetic number, because the mean of its divisors is an integer number (69107508720).

Almost surely, 2^{1442858728731} is an apocalyptic number.

1442858728731 is a deficient number, since it is larger than the sum of its proper divisors (768581550309).

1442858728731 is a wasteful number, since it uses less digits than its factorization.

1442858728731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89683.

The product of its digits is 24084480, while the sum is 60.

The spelling of 1442858728731 in words is "one trillion, four hundred forty-two billion, eight hundred fifty-eight million, seven hundred twenty-eight thousand, seven hundred thirty-one".