1293427581238 has 8 divisors (see below), whose sum is σ = 2089383015888. Its totient is φ = 596966575944.

The previous prime is 1293427581203. The next prime is 1293427581241. The reversal of 1293427581238 is 8321857243921.

It is a happy number.

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

It is a super-2 number, since 2×1293427581238² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24873607306 + ... + 24873607357.

It is an arithmetic number, because the mean of its divisors is an integer number (261172876986).

Almost surely, 2^{1293427581238} is an apocalyptic number.

1293427581238 is a deficient number, since it is larger than the sum of its proper divisors (795955434650).

1293427581238 is a wasteful number, since it uses less digits than its factorization.

1293427581238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49747214678.

The product of its digits is 5806080, while the sum is 55.

The spelling of 1293427581238 in words is "one trillion, two hundred ninety-three billion, four hundred twenty-seven million, five hundred eighty-one thousand, two hundred thirty-eight".