8157415433378 has 8 divisors (see below), whose sum is σ = 12408462912960. Its totient is φ = 4021261129060.

The previous prime is 8157415433369. The next prime is 8157415433383. The reversal of 8157415433378 is 8733345147518.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28723293638 + ... + 28723293921.

It is an arithmetic number, because the mean of its divisors is an integer number (1551057864120).

Almost surely, 2^{8157415433378} is an apocalyptic number.

8157415433378 is a deficient number, since it is larger than the sum of its proper divisors (4251047479582).

8157415433378 is a wasteful number, since it uses less digits than its factorization.

8157415433378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57446587632.

The product of its digits is 33868800, while the sum is 59.

The spelling of 8157415433378 in words is "eight trillion, one hundred fifty-seven billion, four hundred fifteen million, four hundred thirty-three thousand, three hundred seventy-eight".