78468606747774 has 80 divisors (see below), whose sum is σ = 179501473321632. Its totient is φ = 25611668327232.

The previous prime is 78468606747743. The next prime is 78468606747781. The reversal of 78468606747774 is 47774760686487.

78468606747774 is a `hidden beast` number, since 7 + 8 + 4 + 6 + 86 + 0 + 67 + 477 + 7 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 78468606747693 and 78468606747702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4765869 + ... + 13403384.

Almost surely, 2^{78468606747774} is an apocalyptic number.

78468606747774 is an abundant number, since it is smaller than the sum of its proper divisors (101032866573858).

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

78468606747774 is a wasteful number, since it uses less digits than its factorization.

78468606747774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18169823 (or 18169814 counting only the distinct ones).

The product of its (nonzero) digits is 14869757952, while the sum is 81.

The spelling of 78468606747774 in words is "seventy-eight trillion, four hundred sixty-eight billion, six hundred six million, seven hundred forty-seven thousand, seven hundred seventy-four".