78271348288 has 28 divisors (see below), whose sum is σ = 177508237312. Its totient is φ = 33544863360.

The previous prime is 78271348279. The next prime is 78271348297. The reversal of 78271348288 is 88284317287.

It is an interprime number because it is at equal distance from previous prime (78271348279) and next prime (78271348297).

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×78271348288² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87355968 + ... + 87356863.

It is an arithmetic number, because the mean of its divisors is an integer number (6339579904).

Almost surely, 2^78271348288 is an apocalyptic number.

It is an amenable number.

78271348288 is an abundant number, since it is smaller than the sum of its proper divisors (99236889024).

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

78271348288 is a wasteful number, since it uses less digits than its factorization.

78271348288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174712850 (or 174712840 counting only the distinct ones).

The product of its digits is 9633792, while the sum is 58.

The spelling of 78271348288 in words is "seventy-eight billion, two hundred seventy-one million, three hundred forty-eight thousand, two hundred eighty-eight".