6997428572 has 24 divisors (see below), whose sum is σ = 12489839712. Its totient is φ = 3429473600.

The previous prime is 6997428563. The next prime is 6997428587. The reversal of 6997428572 is 2758247996.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22079 + ... + 120342.

It is an arithmetic number, because the mean of its divisors is an integer number (520409988).

Almost surely, 2^6997428572 is an apocalyptic number.

It is an amenable number.

6997428572 is a deficient number, since it is larger than the sum of its proper divisors (5492411140).

6997428572 is a wasteful number, since it uses less digits than its factorization.

6997428572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142669 (or 142667 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 59.

The square root of 6997428572 is about 83650.6340203109. The cubic root of 6997428572 is about 1912.6969176652.

The spelling of 6997428572 in words is "six billion, nine hundred ninety-seven million, four hundred twenty-eight thousand, five hundred seventy-two".