67220978796 has 72 divisors (see below), whose sum is σ = 178583408640. Its totient is φ = 21278546784.

The previous prime is 67220978771. The next prime is 67220978827. The reversal of 67220978796 is 69787902276.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176940 + ... + 407123.

It is an arithmetic number, because the mean of its divisors is an integer number (2480325120).

Almost surely, 2^67220978796 is an apocalyptic number.

It is an amenable number.

67220978796 is an abundant number, since it is smaller than the sum of its proper divisors (111362429844).

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

67220978796 is a wasteful number, since it uses less digits than its factorization.

67220978796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584235 (or 584230 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 63.

The spelling of 67220978796 in words is "sixty-seven billion, two hundred twenty million, nine hundred seventy-eight thousand, seven hundred ninety-six".