67964778042 has 32 divisors (see below), whose sum is σ = 156856307712. Its totient is φ = 19229977584.

The previous prime is 67964778031. The next prime is 67964778047. The reversal of 67964778042 is 24087746976.

67964778042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67964778042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67964778047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7851058 + ... + 7859709.

It is an arithmetic number, because the mean of its divisors is an integer number (4901759616).

Almost surely, 2^67964778042 is an apocalyptic number.

67964778042 is an abundant number, since it is smaller than the sum of its proper divisors (88891529670).

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

67964778042 is a wasteful number, since it uses less digits than its factorization.

67964778042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15710882.

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 67964778042 in words is "sixty-seven billion, nine hundred sixty-four million, seven hundred seventy-eight thousand, forty-two".