78070702080 has 896 divisors, whose sum is σ = 319334814720. Its totient is φ = 15854469120.

The previous prime is 78070702069. The next prime is 78070702111. The reversal of 78070702080 is 8020707087.

It is a tau number, because it is divible by the number of its divisors (896).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277831540 + ... + 277831820.

Almost surely, 2^78070702080 is an apocalyptic number.

78070702080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78070702080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159667407360).

78070702080 is an abundant number, since it is smaller than the sum of its proper divisors (241264112640).

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

78070702080 is a wasteful number, since it uses less digits than its factorization.

78070702080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 78070702080 in words is "seventy-eight billion, seventy million, seven hundred two thousand, eighty".