6986961157 has 8 divisors (see below), whose sum is σ = 7623412992. Its totient is φ = 6350721600.

The previous prime is 6986961139. The next prime is 6986961173. The reversal of 6986961157 is 7511696896.

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 6986961157 - 2¹⁹ = 6986436869 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 (6986961557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20157 + ... + 119917.

It is an arithmetic number, because the mean of its divisors is an integer number (952926624).

Almost surely, 2^6986961157 is an apocalyptic number.

It is an amenable number.

6986961157 is a deficient number, since it is larger than the sum of its proper divisors (636451835).

6986961157 is a wasteful number, since it uses less digits than its factorization.

6986961157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106139.

The product of its digits is 4898880, while the sum is 58.

The square root of 6986961157 is about 83588.0443424776. The cubic root of 6986961157 is about 1911.7427107685.

The spelling of 6986961157 in words is "six billion, nine hundred eighty-six million, nine hundred sixty-one thousand, one hundred fifty-seven".