78177006378560 has 112 divisors (see below), whose sum is σ = 193086402955200. Its totient is φ = 30112834074624.

The previous prime is 78177006378553. The next prime is 78177006378571. The reversal of 78177006378560 is 6587360077187.

It is a super-3 number, since 3×78177006378560³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596662 + ... + 14630901.

Almost surely, 2^{78177006378560} is an apocalyptic number.

It is an amenable number.

78177006378560 is an abundant number, since it is smaller than the sum of its proper divisors (114909396576640).

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

78177006378560 is a wasteful number, since it uses less digits than its factorization.

78177006378560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22227988 (or 22227978 counting only the distinct ones).

The product of its (nonzero) digits is 82978560, while the sum is 65.

The spelling of 78177006378560 in words is "seventy-eight trillion, one hundred seventy-seven billion, six million, three hundred seventy-eight thousand, five hundred sixty".