378156617503 has 8 divisors (see below), whose sum is σ = 432946631808. Its totient is φ = 323558513304.

The previous prime is 378156617467. The next prime is 378156617519. The reversal of 378156617503 is 305716651873.

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 378156617503 - 2¹⁷ = 378156486431 is a prime.

It is a super-2 number, since 2×378156617503² (a number of 24 digits) contains 22 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 (378156617303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47973301 + ... + 47981182.

It is an arithmetic number, because the mean of its divisors is an integer number (54118328976).

Almost surely, 2^378156617503 is an apocalyptic number.

378156617503 is a deficient number, since it is larger than the sum of its proper divisors (54790014305).

378156617503 is an equidigital number, since it uses as much as digits as its factorization.

378156617503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95955053.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 378156617503 in words is "three hundred seventy-eight billion, one hundred fifty-six million, six hundred seventeen thousand, five hundred three".