6931971492 has 24 divisors (see below), whose sum is σ = 16178959776. Its totient is φ = 2310034368.

The previous prime is 6931971491. The next prime is 6931971509. The reversal of 6931971492 is 2941791396.

It is not an unprimeable number, because it can be changed into a prime (6931971491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30313 + ... + 121584.

It is an arithmetic number, because the mean of its divisors is an integer number (674123324).

Almost surely, 2^6931971492 is an apocalyptic number.

It is an amenable number.

6931971492 is an abundant number, since it is smaller than the sum of its proper divisors (9246988284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6931971492 is a wasteful number, since it uses less digits than its factorization.

6931971492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155707 (or 155705 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 6931971492 is about 83258.4619843533. The cubic root of 6931971492 is about 1906.7141490748.

The spelling of 6931971492 in words is "six billion, nine hundred thirty-one million, nine hundred seventy-one thousand, four hundred ninety-two".