1283740138294 has 8 divisors (see below), whose sum is σ = 2038881396168. Its totient is φ = 604113006240.

The previous prime is 1283740138267. The next prime is 1283740138297. The reversal of 1283740138294 is 4928310473821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283740138297) 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, 18878531412 + ... + 18878531479.

It is an arithmetic number, because the mean of its divisors is an integer number (254860174521).

Almost surely, 2^{1283740138294} is an apocalyptic number.

1283740138294 is a deficient number, since it is larger than the sum of its proper divisors (755141257874).

1283740138294 is a wasteful number, since it uses less digits than its factorization.

1283740138294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37757062910.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 1283740138294 in words is "one trillion, two hundred eighty-three billion, seven hundred forty million, one hundred thirty-eight thousand, two hundred ninety-four".