378853136641 has 8 divisors (see below), whose sum is σ = 439073253504. Its totient is φ = 320157579840.

The previous prime is 378853136639. The next prime is 378853136647. The reversal of 378853136641 is 146631358873.

It is a happy number.

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

It is not a de Polignac number, because 378853136641 - 2¹ = 378853136639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378853136647) 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, 381139480 + ... + 381140473.

It is an arithmetic number, because the mean of its divisors is an integer number (54884156688).

Almost surely, 2^378853136641 is an apocalyptic number.

It is an amenable number.

378853136641 is a deficient number, since it is larger than the sum of its proper divisors (60220116863).

378853136641 is an equidigital number, since it uses as much as digits as its factorization.

378853136641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762280031.

The product of its digits is 8709120, while the sum is 55.

The spelling of 378853136641 in words is "three hundred seventy-eight billion, eight hundred fifty-three million, one hundred thirty-six thousand, six hundred forty-one".