7156312042 has 16 divisors (see below), whose sum is σ = 11711772000. Its totient is φ = 3252468240.

The previous prime is 7156312013. The next prime is 7156312123. The reversal of 7156312042 is 2402136517.

It is a junction number, because it is equal to n+sod(n) for n = 7156311995 and 7156312013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234184 + ... + 262972.

It is an arithmetic number, because the mean of its divisors is an integer number (731985750).

Almost surely, 2^7156312042 is an apocalyptic number.

7156312042 is a deficient number, since it is larger than the sum of its proper divisors (4555459958).

7156312042 is a wasteful number, since it uses less digits than its factorization.

7156312042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40101.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7156312042 is about 84594.9882794483. The cubic root of 7156312042 is about 1927.0652634852.

Adding to 7156312042 its reverse (2402136517), we get a palindrome (9558448559).

The spelling of 7156312042 in words is "seven billion, one hundred fifty-six million, three hundred twelve thousand, forty-two".