78368872633 has 8 divisors (see below), whose sum is σ = 82514656800. Its totient is φ = 74225199168.

The previous prime is 78368872627. The next prime is 78368872691. The reversal of 78368872633 is 33627886387.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78368872633 is a prime.

It is a super-2 number, since 2×78368872633² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78368872613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451168 + ... + 600241.

It is an arithmetic number, because the mean of its divisors is an integer number (10314332100).

Almost surely, 2^78368872633 is an apocalyptic number.

It is an amenable number.

78368872633 is a deficient number, since it is larger than the sum of its proper divisors (4145784167).

78368872633 is a wasteful number, since it uses less digits than its factorization.

78368872633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055351.

The product of its digits is 48771072, while the sum is 61.

The spelling of 78368872633 in words is "seventy-eight billion, three hundred sixty-eight million, eight hundred seventy-two thousand, six hundred thirty-three".