2785347842148 has 18 divisors (see below), whose sum is σ = 7040740378854. Its totient is φ = 928449280704.

The previous prime is 2785347842141. The next prime is 2785347842153. The reversal of 2785347842148 is 8412487435872.

2785347842148 is a `hidden beast` number, since 2 + 7 + 8 + 534 + 7 + 84 + 2 + 14 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1700567267364 + 1084780574784 = 1304058^2 + 1041528^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-4 number, since 4×2785347842148⁴ (a number of 51 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2785347842141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38685386661 + ... + 38685386732.

Almost surely, 2^{2785347842148} is an apocalyptic number.

It is an amenable number.

2785347842148 is an abundant number, since it is smaller than the sum of its proper divisors (4255392536706).

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

2785347842148 is a wasteful number, since it uses less digits than its factorization.

2785347842148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77370773403 (or 77370773398 counting only the distinct ones).

The product of its digits is 96337920, while the sum is 63.

The spelling of 2785347842148 in words is "two trillion, seven hundred eighty-five billion, three hundred forty-seven million, eight hundred forty-two thousand, one hundred forty-eight".