61868387433 has 8 divisors (see below), whose sum is σ = 82492759296. Its totient is φ = 41244803600.

The previous prime is 61868387431. The next prime is 61868387467. The reversal of 61868387433 is 33478386816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61868387433 - 2¹ = 61868387431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61868387431) by changing a digit.

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, 20488 + ... + 352358.

It is an arithmetic number, because the mean of its divisors is an integer number (10311594912).

Almost surely, 2^61868387433 is an apocalyptic number.

It is an amenable number.

61868387433 is a deficient number, since it is larger than the sum of its proper divisors (20624371863).

61868387433 is a wasteful number, since it uses less digits than its factorization.

61868387433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394015.

The product of its digits is 13934592, while the sum is 57.

The spelling of 61868387433 in words is "sixty-one billion, eight hundred sixty-eight million, three hundred eighty-seven thousand, four hundred thirty-three".