6742641920 has 72 divisors (see below), whose sum is σ = 18458006784. Its totient is φ = 2311759872.

The previous prime is 6742641911. The next prime is 6742641923. The reversal of 6742641920 is 291462476.

It is a super-2 number, since 2×6742641920² = 90926440122682572800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6742641923) 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, 367304 + ... + 385223.

Almost surely, 2^6742641920 is an apocalyptic number.

It is an amenable number.

6742641920 is an abundant number, since it is smaller than the sum of its proper divisors (11715364864).

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

6742641920 is an equidigital number, since it uses as much as digits as its factorization.

6742641920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752555 (or 752541 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 6742641920 is about 82113.5915668046. The cubic root of 6742641920 is about 1889.1946140643.

The spelling of 6742641920 in words is "six billion, seven hundred forty-two million, six hundred forty-one thousand, nine hundred twenty".