7042894431 has 8 divisors (see below), whose sum is σ = 9390913584. Its totient is φ = 4695069120.

The previous prime is 7042894421. The next prime is 7042894447. The reversal of 7042894431 is 1344982407.

7042894431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7042894431 - 2¹³ = 7042886239 is a prime.

It is a super-2 number, since 2×7042894431² = 99204723932421627522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042894421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118341 + ... + 167601.

It is an arithmetic number, because the mean of its divisors is an integer number (1173864198).

Almost surely, 2^7042894431 is an apocalyptic number.

7042894431 is a deficient number, since it is larger than the sum of its proper divisors (2348019153).

7042894431 is a wasteful number, since it uses less digits than its factorization.

7042894431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96921.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 7042894431 is about 83921.9544040771. The cubic root of 7042894431 is about 1916.8305665747.

The spelling of 7042894431 in words is "seven billion, forty-two million, eight hundred ninety-four thousand, four hundred thirty-one".