67790900540 has 48 divisors (see below), whose sum is σ = 160658074080. Its totient is φ = 23801191680.

The previous prime is 67790900539. The next prime is 67790900581. The reversal of 67790900540 is 4500909776.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5306387 + ... + 5319146.

It is an arithmetic number, because the mean of its divisors is an integer number (3347043210).

Almost surely, 2^67790900540 is an apocalyptic number.

It is an amenable number.

67790900540 is an abundant number, since it is smaller than the sum of its proper divisors (92867173540).

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

67790900540 is a wasteful number, since it uses less digits than its factorization.

67790900540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625582 (or 10625580 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 67790900540 in words is "sixty-seven billion, seven hundred ninety million, nine hundred thousand, five hundred forty".