78734118763 has 8 divisors (see below), whose sum is σ = 79231122432. Its totient is φ = 78237419496.

The previous prime is 78734118739. The next prime is 78734118839. The reversal of 78734118763 is 36781143787.

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-78734118763 is a prime.

It is a super-2 number, since 2×78734118763² (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 (78734118713) 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, 454456 + ... + 603322.

It is an arithmetic number, because the mean of its divisors is an integer number (9903890304).

Almost surely, 2^78734118763 is an apocalyptic number.

78734118763 is a deficient number, since it is larger than the sum of its proper divisors (497003669).

78734118763 is a wasteful number, since it uses less digits than its factorization.

78734118763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152201.

The product of its digits is 4741632, while the sum is 55.

The spelling of 78734118763 in words is "seventy-eight billion, seven hundred thirty-four million, one hundred eighteen thousand, seven hundred sixty-three".