67767700340 has 24 divisors (see below), whose sum is σ = 145783201032. Its totient is φ = 26445931520.

The previous prime is 67767700331. The next prime is 67767700379. The reversal of 67767700340 is 4300776776.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9386509456 + 58381190884 = 96884^2 + 241622^2 .

It is a super-2 number, since 2×67767700340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41320949 + ... + 41322588.

It is an arithmetic number, because the mean of its divisors is an integer number (6074300043).

Almost surely, 2^67767700340 is an apocalyptic number.

It is an amenable number.

67767700340 is an abundant number, since it is smaller than the sum of its proper divisors (78015500692).

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

67767700340 is a wasteful number, since it uses less digits than its factorization.

67767700340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82643587 (or 82643585 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 47.

The spelling of 67767700340 in words is "sixty-seven billion, seven hundred sixty-seven million, seven hundred thousand, three hundred forty".