6900497920 has 40 divisors (see below), whose sum is σ = 16545028104. Its totient is φ = 2760198144.

The previous prime is 6900497911. The next prime is 6900497921. The reversal of 6900497920 is 297940096.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900497921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345194 + ... + 1350313.

Almost surely, 2^6900497920 is an apocalyptic number.

It is an amenable number.

6900497920 is an abundant number, since it is smaller than the sum of its proper divisors (9644530184).

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

6900497920 is an equidigital number, since it uses as much as digits as its factorization.

6900497920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695530 (or 2695514 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 6900497920 is about 83069.2357013112. The cubic root of 6900497920 is about 1903.8240545465.

The spelling of 6900497920 in words is "six billion, nine hundred million, four hundred ninety-seven thousand, nine hundred twenty".