67840368754 has 4 divisors (see below), whose sum is σ = 101760553134. Its totient is φ = 33920184376.

The previous prime is 67840368749. The next prime is 67840368787. The reversal of 67840368754 is 45786304876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65185749225 + 2654619529 = 255315^2 + 51523^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16960092187 + ... + 16960092190.

Almost surely, 2^67840368754 is an apocalyptic number.

67840368754 is a deficient number, since it is larger than the sum of its proper divisors (33920184380).

67840368754 is a wasteful number, since it uses less digits than its factorization.

67840368754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33920184379.

The product of its (nonzero) digits is 27095040, while the sum is 58.

The spelling of 67840368754 in words is "sixty-seven billion, eight hundred forty million, three hundred sixty-eight thousand, seven hundred fifty-four".