7842000143 has 4 divisors (see below), whose sum is σ = 7845713568. Its totient is φ = 7838286720.

The previous prime is 7842000139. The next prime is 7842000217. The reversal of 7842000143 is 3410002487.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7842000143 - 2² = 7842000139 is a prime.

It is a super-2 number, since 2×7842000143² (a number of 21 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 (7842000043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853543 + ... + 1857768.

It is an arithmetic number, because the mean of its divisors is an integer number (1961428392).

Almost surely, 2^7842000143 is an apocalyptic number.

7842000143 is a deficient number, since it is larger than the sum of its proper divisors (3713425).

7842000143 is a wasteful number, since it uses less digits than its factorization.

7842000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713424.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 7842000143 is about 88555.0684207290. The cubic root of 7842000143 is about 1986.7457010689.

The spelling of 7842000143 in words is "seven billion, eight hundred forty-two million, one hundred forty-three", and thus it is an aban number.