61868376067 has 4 divisors (see below), whose sum is σ = 61872663520. Its totient is φ = 61864088616.

The previous prime is 61868376019. The next prime is 61868376107. The reversal of 61868376067 is 76067386816.

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

It is a cyclic number.

It is not a de Polignac number, because 61868376067 - 2¹⁹ = 61867851779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61868376467) 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, 2122008 + ... + 2150965.

It is an arithmetic number, because the mean of its divisors is an integer number (15468165880).

Almost surely, 2^61868376067 is an apocalyptic number.

61868376067 is a deficient number, since it is larger than the sum of its proper divisors (4287453).

61868376067 is a wasteful number, since it uses less digits than its factorization.

61868376067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287452.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 61868376067 in words is "sixty-one billion, eight hundred sixty-eight million, three hundred seventy-six thousand, sixty-seven".