7958947142 has 32 divisors (see below), whose sum is σ = 12750423840. Its totient is φ = 3720487680.

The previous prime is 7958947141. The next prime is 7958947151. The reversal of 7958947142 is 2417498597.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7958947141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165584 + ... + 208172.

It is an arithmetic number, because the mean of its divisors is an integer number (398450745).

Almost surely, 2^7958947142 is an apocalyptic number.

7958947142 is a deficient number, since it is larger than the sum of its proper divisors (4791476698).

7958947142 is a wasteful number, since it uses less digits than its factorization.

7958947142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42728.

The product of its digits is 5080320, while the sum is 56.

The square root of 7958947142 is about 89212.9314729653. The cubic root of 7958947142 is about 1996.5730598946.

The spelling of 7958947142 in words is "seven billion, nine hundred fifty-eight million, nine hundred forty-seven thousand, one hundred forty-two".