78177485536106 has 24 divisors (see below), whose sum is σ = 133340624387460. Its totient is φ = 34309868257280.

The previous prime is 78177485536099. The next prime is 78177485536181. The reversal of 78177485536106 is 60163558477187.

It can be written as a sum of positive squares in 2 ways, for example, as 76875912587881 + 1301572948225 = 8767891^2 + 1140865^2 .

It is a super-3 number, since 3×78177485536106³ (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 11 ways as a sum of consecutive naturals, for example, 5569776791 + ... + 5569790826.

Almost surely, 2^{78177485536106} is an apocalyptic number.

78177485536106 is a deficient number, since it is larger than the sum of its proper divisors (55163138851354).

78177485536106 is a wasteful number, since it uses less digits than its factorization.

78177485536106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11139567670 (or 11139567659 counting only the distinct ones).

The product of its (nonzero) digits is 237081600, while the sum is 68.

The spelling of 78177485536106 in words is "seventy-eight trillion, one hundred seventy-seven billion, four hundred eighty-five million, five hundred thirty-six thousand, one hundred six".