67304327640 has 64 divisors (see below), whose sum is σ = 220268712960. Its totient is φ = 16316200320.

The previous prime is 67304327617. The next prime is 67304327659. The reversal of 67304327640 is 4672340376.

It is a junction number, because it is equal to n+sod(n) for n = 67304327592 and 67304327601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25492744 + ... + 25495383.

It is an arithmetic number, because the mean of its divisors is an integer number (3441698640).

Almost surely, 2^67304327640 is an apocalyptic number.

67304327640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67304327640 is an abundant number, since it is smaller than the sum of its proper divisors (152964385320).

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

67304327640 is a wasteful number, since it uses less digits than its factorization.

67304327640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50988152 (or 50988148 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 42.

The spelling of 67304327640 in words is "sixty-seven billion, three hundred four million, three hundred twenty-seven thousand, six hundred forty".