378775902503 has 4 divisors (see below), whose sum is σ = 379173359808. Its totient is φ = 378378445200.

The previous prime is 378775902457. The next prime is 378775902511. The reversal of 378775902503 is 305209577873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305209577873 = 491537 ⋅620929.

It is a cyclic number.

It is not a de Polignac number, because 378775902503 - 2¹² = 378775898407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378775905503) 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, 198727223 + ... + 198729128.

It is an arithmetic number, because the mean of its divisors is an integer number (94793339952).

Almost surely, 2^378775902503 is an apocalyptic number.

378775902503 is a deficient number, since it is larger than the sum of its proper divisors (397457305).

378775902503 is an equidigital number, since it uses as much as digits as its factorization.

378775902503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397457304.

The product of its (nonzero) digits is 11113200, while the sum is 56.

The spelling of 378775902503 in words is "three hundred seventy-eight billion, seven hundred seventy-five million, nine hundred two thousand, five hundred three".