67490751642 has 16 divisors (see below), whose sum is σ = 139636038240. Its totient is φ = 21721161392.

The previous prime is 67490751611. The next prime is 67490751649. The reversal of 67490751642 is 24615709476.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67490751649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193938768 + ... + 193939115.

It is an arithmetic number, because the mean of its divisors is an integer number (8727252390).

Almost surely, 2^67490751642 is an apocalyptic number.

67490751642 is an abundant number, since it is smaller than the sum of its proper divisors (72145286598).

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

67490751642 is a wasteful number, since it uses less digits than its factorization.

67490751642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387877917.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 67490751642 in words is "sixty-seven billion, four hundred ninety million, seven hundred fifty-one thousand, six hundred forty-two".