67930381782 has 32 divisors (see below), whose sum is σ = 156161800800. Its totient is φ = 21862651104.

The previous prime is 67930381763. The next prime is 67930381817. The reversal of 67930381782 is 28718303976.

It is a super-2 number, since 2×67930381782² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21687573 + ... + 21690704.

It is an arithmetic number, because the mean of its divisors is an integer number (4880056275).

Almost surely, 2^67930381782 is an apocalyptic number.

67930381782 is an abundant number, since it is smaller than the sum of its proper divisors (88231419018).

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

67930381782 is a wasteful number, since it uses less digits than its factorization.

67930381782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43378317 (or 43378311 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 67930381782 in words is "sixty-seven billion, nine hundred thirty million, three hundred eighty-one thousand, seven hundred eighty-two".