78743007877008 has 320 divisors, whose sum is σ = 230053132800000. Its totient is φ = 23060761731072.

The previous prime is 78743007877007. The next prime is 78743007877031. The reversal of 78743007877008 is 80077870034787.

It is a super-2 number, since 2×78743007877008² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78743007877008.

It is not an unprimeable number, because it can be changed into a prime (78743007877007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 611118766 + ... + 611247602.

It is an arithmetic number, because the mean of its divisors is an integer number (718916040000).

Almost surely, 2^{78743007877008} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78743007877008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115026566400000).

78743007877008 is an abundant number, since it is smaller than the sum of its proper divisors (151310124922992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78743007877008 is a wasteful number, since it uses less digits than its factorization.

78743007877008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129462 (or 129456 counting only the distinct ones).

The product of its (nonzero) digits is 103262208, while the sum is 66.

The spelling of 78743007877008 in words is "seventy-eight trillion, seven hundred forty-three billion, seven million, eight hundred seventy-seven thousand, eight".