7957958143 has 4 divisors (see below), whose sum is σ = 7967558440. Its totient is φ = 7948357848.

The previous prime is 7957958123. The next prime is 7957958147. The reversal of 7957958143 is 3418597597.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7957958143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7957958147) 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, 4798905 + ... + 4800562.

It is an arithmetic number, because the mean of its divisors is an integer number (1991889610).

Almost surely, 2^7957958143 is an apocalyptic number.

7957958143 is a deficient number, since it is larger than the sum of its proper divisors (9600297).

7957958143 is an equidigital number, since it uses as much as digits as its factorization.

7957958143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600296.

The product of its digits is 9525600, while the sum is 58.

The square root of 7957958143 is about 89207.3883879581. The cubic root of 7957958143 is about 1996.4903567212.

The spelling of 7957958143 in words is "seven billion, nine hundred fifty-seven million, nine hundred fifty-eight thousand, one hundred forty-three".