7157005078861 has 8 divisors (see below), whose sum is σ = 7817292892800. Its totient is φ = 6498325763040.

The previous prime is 7157005078841. The next prime is 7157005078871. The reversal of 7157005078861 is 1688705007517.

7157005078861 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 a cyclic number.

It is not a de Polignac number, because 7157005078861 - 2⁵ = 7157005078829 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 (7157005078841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402115221 + ... + 402133018.

It is an arithmetic number, because the mean of its divisors is an integer number (977161611600).

Almost surely, 2^{7157005078861} is an apocalyptic number.

It is an amenable number.

7157005078861 is a deficient number, since it is larger than the sum of its proper divisors (660287813939).

7157005078861 is a wasteful number, since it uses less digits than its factorization.

7157005078861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804249059.

The product of its (nonzero) digits is 3292800, while the sum is 55.

The spelling of 7157005078861 in words is "seven trillion, one hundred fifty-seven billion, five million, seventy-eight thousand, eight hundred sixty-one".