378847764517 has 8 divisors (see below), whose sum is σ = 383655958400. Its totient is φ = 374039887104.

The previous prime is 378847764511. The next prime is 378847764553. The reversal of 378847764517 is 715467748873.

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 378847764517 - 2¹⁹ = 378847240229 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 (378847764511) 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, 3172234 + ... + 3289492.

It is an arithmetic number, because the mean of its divisors is an integer number (47956994800).

Almost surely, 2^378847764517 is an apocalyptic number.

It is an amenable number.

378847764517 is a deficient number, since it is larger than the sum of its proper divisors (4808193883).

378847764517 is a wasteful number, since it uses less digits than its factorization.

378847764517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158235.

The product of its digits is 221276160, while the sum is 67.

The spelling of 378847764517 in words is "three hundred seventy-eight billion, eight hundred forty-seven million, seven hundred sixty-four thousand, five hundred seventeen".