78300278008 has 16 divisors (see below), whose sum is σ = 149583079080. Its totient is φ = 38411456928.

The previous prime is 78300277963. The next prime is 78300278009. The reversal of 78300278008 is 80087200387.

It is a super-2 number, since 2×78300278008² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78300278009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92334810 + ... + 92335657.

Almost surely, 2^78300278008 is an apocalyptic number.

It is an amenable number.

78300278008 is a deficient number, since it is larger than the sum of its proper divisors (71282801072).

78300278008 is a wasteful number, since it uses less digits than its factorization.

78300278008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184670526 (or 184670522 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 78300278008 in words is "seventy-eight billion, three hundred million, two hundred seventy-eight thousand, eight".