1042889387951 has 8 divisors (see below), whose sum is σ = 1058547794304. Its totient is φ = 1027233713880.

The previous prime is 1042889387879. The next prime is 1042889387989. The reversal of 1042889387951 is 1597839882401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1042889387951 - 2¹⁸ = 1042889125807 is a prime.

It is a super-2 number, since 2×1042889387951² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042889387651) 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 in 7 ways as a sum of consecutive naturals, for example, 92606 + ... + 1447188.

It is an arithmetic number, because the mean of its divisors is an integer number (132318474288).

Almost surely, 2^{1042889387951} is an apocalyptic number.

1042889387951 is a deficient number, since it is larger than the sum of its proper divisors (15658406353).

1042889387951 is a wasteful number, since it uses less digits than its factorization.

1042889387951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366141.

The product of its (nonzero) digits is 34836480, while the sum is 65.

The spelling of 1042889387951 in words is "one trillion, forty-two billion, eight hundred eighty-nine million, three hundred eighty-seven thousand, nine hundred fifty-one".