8478077742460 has 24 divisors (see below), whose sum is σ = 17804577162960. Its totient is φ = 3391114162944.

The previous prime is 8478077742391. The next prime is 8478077742577. The reversal of 8478077742460 is 642477708748.

It is a junction number, because it is equal to n+sod(n) for n = 8478077742392 and 8478077742401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6712669 + ... + 7875028.

It is an arithmetic number, because the mean of its divisors is an integer number (741857381790).

Almost surely, 2^{8478077742460} is an apocalyptic number.

It is an amenable number.

8478077742460 is an abundant number, since it is smaller than the sum of its proper divisors (9326499420500).

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

8478077742460 is a wasteful number, since it uses less digits than its factorization.

8478077742460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14616765 (or 14616763 counting only the distinct ones).

The product of its (nonzero) digits is 118013952, while the sum is 64.

The spelling of 8478077742460 in words is "eight trillion, four hundred seventy-eight billion, seventy-seven million, seven hundred forty-two thousand, four hundred sixty".