67901919736 has 48 divisors (see below), whose sum is σ = 148288908600. Its totient is φ = 29064176064.

The previous prime is 67901919719. The next prime is 67901919737. The reversal of 67901919736 is 63791910976.

It is a super-2 number, since 2×67901919736² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67901919737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203755 + ... + 421093.

Almost surely, 2^67901919736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67901919736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74144454300).

67901919736 is an abundant number, since it is smaller than the sum of its proper divisors (80386988864).

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

67901919736 is a wasteful number, since it uses less digits than its factorization.

67901919736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218156 (or 218145 counting only the distinct ones).

The product of its (nonzero) digits is 3857868, while the sum is 58.

The spelling of 67901919736 in words is "sixty-seven billion, nine hundred one million, nine hundred nineteen thousand, seven hundred thirty-six".