2784678660084 has 12 divisors (see below), whose sum is σ = 6497583540224. Its totient is φ = 928226220024.

The previous prime is 2784678660073. The next prime is 2784678660089. The reversal of 2784678660084 is 4800668764872.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2784678660084² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2784678659997 and 2784678660024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784678660089) 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, 116028277492 + ... + 116028277515.

Almost surely, 2^{2784678660084} is an apocalyptic number.

It is an amenable number.

2784678660084 is an abundant number, since it is smaller than the sum of its proper divisors (3712904880140).

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

2784678660084 is a wasteful number, since it uses less digits than its factorization.

2784678660084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232056555014 (or 232056555012 counting only the distinct ones).

The product of its (nonzero) digits is 173408256, while the sum is 66.

The spelling of 2784678660084 in words is "two trillion, seven hundred eighty-four billion, six hundred seventy-eight million, six hundred sixty thousand, eighty-four".