147778279775282 has 24 divisors (see below), whose sum is σ = 245884801225140. Its totient is φ = 66541814526720.

The previous prime is 147778279775257. The next prime is 147778279775297. The reversal of 147778279775282 is 282577972877741.

It is a Cunningham number, because it is equal to 12156409²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 7120790847361 + 140657488927921 = 2668481^2 + 11859911^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 147778279775282.

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, 5331862307 + ... + 5331890022.

Almost surely, 2^{147778279775282} is an apocalyptic number.

147778279775282 is a deficient number, since it is larger than the sum of its proper divisors (98106521449858).

147778279775282 is a wasteful number, since it uses less digits than its factorization.

147778279775282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663752398 (or 10663752385 counting only the distinct ones).

The product of its digits is 10842531840, while the sum is 83.

The spelling of 147778279775282 in words is "one hundred forty-seven trillion, seven hundred seventy-eight billion, two hundred seventy-nine million, seven hundred seventy-five thousand, two hundred eighty-two".