1392866768749 has 8 divisors (see below), whose sum is σ = 1393484203008. Its totient is φ = 1392249437040.

The previous prime is 1392866768707. The next prime is 1392866768753. The reversal of 1392866768749 is 9478676682931.

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

It is a cyclic number.

It is not a de Polignac number, because 1392866768749 - 2¹¹ = 1392866766701 is a prime.

It is a super-4 number, since 4×1392866768749⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392866765749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40249444 + ... + 40284034.

It is an arithmetic number, because the mean of its divisors is an integer number (174185525376).

Almost surely, 2^{1392866768749} is an apocalyptic number.

It is an amenable number.

1392866768749 is a deficient number, since it is larger than the sum of its proper divisors (617434259).

1392866768749 is a wasteful number, since it uses less digits than its factorization.

1392866768749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51275.

The product of its digits is 1316818944, while the sum is 76.

The spelling of 1392866768749 in words is "one trillion, three hundred ninety-two billion, eight hundred sixty-six million, seven hundred sixty-eight thousand, seven hundred forty-nine".