67794785620 has 12 divisors (see below), whose sum is σ = 142369049844. Its totient is φ = 27117914240.

The previous prime is 67794785599. The next prime is 67794785621. The reversal of 67794785620 is 2658749776.

It is a happy number.

67794785620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23828244496 + 43966541124 = 154364^2 + 209682^2 .

It is a super-2 number, since 2×67794785620² (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 (67794785621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694869621 + ... + 1694869660.

It is an arithmetic number, because the mean of its divisors is an integer number (11864087487).

Almost surely, 2^67794785620 is an apocalyptic number.

It is an amenable number.

67794785620 is an abundant number, since it is smaller than the sum of its proper divisors (74574264224).

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

67794785620 is a wasteful number, since it uses less digits than its factorization.

67794785620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389739290 (or 3389739288 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 67794785620 in words is "sixty-seven billion, seven hundred ninety-four million, seven hundred eighty-five thousand, six hundred twenty".