6742379520 has 704 divisors, whose sum is σ = 26882841600. Its totient is φ = 1592524800.

The previous prime is 6742379509. The next prime is 6742379543. The reversal of 6742379520 is 259732476.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44651445 + ... + 44651595.

Almost surely, 2^6742379520 is an apocalyptic number.

6742379520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6742379520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13441420800).

6742379520 is an abundant number, since it is smaller than the sum of its proper divisors (20140462080).

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

6742379520 is a wasteful number, since it uses less digits than its factorization.

6742379520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 6742379520 is about 82111.9937646139. The cubic root of 6742379520 is about 1889.1701068012.

The spelling of 6742379520 in words is "six billion, seven hundred forty-two million, three hundred seventy-nine thousand, five hundred twenty".