1283807158278 has 48 divisors (see below), whose sum is σ = 2815520047104. Its totient is φ = 389770657920.

The previous prime is 1283807158211. The next prime is 1283807158279. The reversal of 1283807158278 is 8728517083821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283807158279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11887750 + ... + 11995257.

It is an arithmetic number, because the mean of its divisors is an integer number (58656667648).

Almost surely, 2^{1283807158278} is an apocalyptic number.

1283807158278 is an abundant number, since it is smaller than the sum of its proper divisors (1531712888826).

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

1283807158278 is a wasteful number, since it uses less digits than its factorization.

1283807158278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23883077 (or 23883060 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 60.

The spelling of 1283807158278 in words is "one trillion, two hundred eighty-three billion, eight hundred seven million, one hundred fifty-eight thousand, two hundred seventy-eight".