2378516821457 has 8 divisors (see below), whose sum is σ = 2734981657536. Its totient is φ = 2026221165072.

The previous prime is 2378516821393. The next prime is 2378516821463. The reversal of 2378516821457 is 7541286158732.

2378516821457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2378516821457 - 2⁶ = 2378516821393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2378516821396 and 2378516821405.

It is not an unprimeable number, because it can be changed into a prime (2378516821157) 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, 1042293698 + ... + 1042295979.

It is an arithmetic number, because the mean of its divisors is an integer number (341872707192).

Almost surely, 2^{2378516821457} is an apocalyptic number.

It is an amenable number.

2378516821457 is a deficient number, since it is larger than the sum of its proper divisors (356464836079).

2378516821457 is a wasteful number, since it uses less digits than its factorization.

2378516821457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084589847.

The product of its digits is 22579200, while the sum is 59.

The spelling of 2378516821457 in words is "two trillion, three hundred seventy-eight billion, five hundred sixteen million, eight hundred twenty-one thousand, four hundred fifty-seven".