67540207472 has 10 divisors (see below), whose sum is σ = 130859152008. Its totient is φ = 33770103728.

The previous prime is 67540207403. The next prime is 67540207507. The reversal of 67540207472 is 27470204576.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110631468 + ... + 2110631499.

Almost surely, 2^67540207472 is an apocalyptic number.

It is an amenable number.

67540207472 is a deficient number, since it is larger than the sum of its proper divisors (63318944536).

67540207472 is a wasteful number, since it uses less digits than its factorization.

67540207472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221262975 (or 4221262969 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 44.

The spelling of 67540207472 in words is "sixty-seven billion, five hundred forty million, two hundred seven thousand, four hundred seventy-two".