378874161515 has 8 divisors (see below), whose sum is σ = 457277023728. Its totient is φ = 301347309280.

The previous prime is 378874161493. The next prime is 378874161521. The reversal of 378874161515 is 515161478873.

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

It is not a de Polignac number, because 378874161515 - 2¹⁶ = 378874095979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219001541 + ... + 219003270.

It is an arithmetic number, because the mean of its divisors is an integer number (57159627966).

Almost surely, 2^378874161515 is an apocalyptic number.

378874161515 is a deficient number, since it is larger than the sum of its proper divisors (78402862213).

378874161515 is a wasteful number, since it uses less digits than its factorization.

378874161515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438004989.

The product of its digits is 5644800, while the sum is 56.

The spelling of 378874161515 in words is "three hundred seventy-eight billion, eight hundred seventy-four million, one hundred sixty-one thousand, five hundred fifteen".