378644018002617 has 8 divisors (see below), whose sum is σ = 504867197229120. Its totient is φ = 252425092055600.

The previous prime is 378644018002583. The next prime is 378644018002693. The reversal of 378644018002617 is 716200810446873.

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 378644018002617 - 2¹⁸ = 378644017740473 is a prime.

It is a super-2 number, since 2×378644018002617² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378644018002717) 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, 1063112142 + ... + 1063468247.

It is an arithmetic number, because the mean of its divisors is an integer number (63108399653640).

Almost surely, 2^{378644018002617} is an apocalyptic number.

It is an amenable number.

378644018002617 is a deficient number, since it is larger than the sum of its proper divisors (126223179226503).

378644018002617 is a wasteful number, since it uses less digits than its factorization.

378644018002617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126639743.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 378644018002617 in words is "three hundred seventy-eight trillion, six hundred forty-four billion, eighteen million, two thousand, six hundred seventeen".