553856867378 has 8 divisors (see below), whose sum is σ = 830896376220. Its totient is φ = 276891408640.

The previous prime is 553856867371. The next prime is 553856867383. The reversal of 553856867378 is 873768658355.

It can be written as a sum of positive squares in 2 ways, for example, as 540552859729 + 13304007649 = 735223^2 + 115343^2 .

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

It is not an unprimeable number, because it can be changed into a prime (553856867371) 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, 18493823 + ... + 18523746.

Almost surely, 2^553856867378 is an apocalyptic number.

553856867378 is a deficient number, since it is larger than the sum of its proper divisors (277039508842).

553856867378 is a wasteful number, since it uses less digits than its factorization.

553856867378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37025052.

The product of its digits is 1016064000, while the sum is 71.

The spelling of 553856867378 in words is "five hundred fifty-three billion, eight hundred fifty-six million, eight hundred sixty-seven thousand, three hundred seventy-eight".