6935972158 has 16 divisors (see below), whose sum is σ = 10562471424. Its totient is φ = 3415547520.

The previous prime is 6935972149. The next prime is 6935972189. The reversal of 6935972158 is 8512795396.

It is a junction number, because it is equal to n+sod(n) for n = 6935972099 and 6935972108.

It is a congruent number.

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, 64863 + ... + 134458.

It is an arithmetic number, because the mean of its divisors is an integer number (660154464).

Almost surely, 2^6935972158 is an apocalyptic number.

6935972158 is a deficient number, since it is larger than the sum of its proper divisors (3626499266).

6935972158 is a wasteful number, since it uses less digits than its factorization.

6935972158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199587.

The product of its digits is 4082400, while the sum is 55.

The square root of 6935972158 is about 83282.4841008000. The cubic root of 6935972158 is about 1907.0808874294.

The spelling of 6935972158 in words is "six billion, nine hundred thirty-five million, nine hundred seventy-two thousand, one hundred fifty-eight".