1378725952853 has 8 divisors (see below), whose sum is σ = 1391745425760. Its totient is φ = 1365708965040.

The previous prime is 1378725952837. The next prime is 1378725952871. The reversal of 1378725952853 is 3582595278731.

It is a happy number.

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 1378725952853 - 2⁴ = 1378725952837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1378725952853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378725955853) 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, 503123 + ... + 1735103.

It is an arithmetic number, because the mean of its divisors is an integer number (173968178220).

Almost surely, 2^{1378725952853} is an apocalyptic number.

It is an amenable number.

1378725952853 is a deficient number, since it is larger than the sum of its proper divisors (13019472907).

1378725952853 is a wasteful number, since it uses less digits than its factorization.

1378725952853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242547.

The product of its digits is 127008000, while the sum is 65.

The spelling of 1378725952853 in words is "one trillion, three hundred seventy-eight billion, seven hundred twenty-five million, nine hundred fifty-two thousand, eight hundred fifty-three".