2569415140478 has 4 divisors (see below), whose sum is σ = 3854122710720. Its totient is φ = 1284707570238.

The previous prime is 2569415140477. The next prime is 2569415140553. The reversal of 2569415140478 is 8740415149652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2569415140477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642353785118 + ... + 642353785121.

It is an arithmetic number, because the mean of its divisors is an integer number (963530677680).

Almost surely, 2^{2569415140478} is an apocalyptic number.

2569415140478 is a deficient number, since it is larger than the sum of its proper divisors (1284707570242).

2569415140478 is a wasteful number, since it uses less digits than its factorization.

2569415140478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284707570241.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 2569415140478 in words is "two trillion, five hundred sixty-nine billion, four hundred fifteen million, one hundred forty thousand, four hundred seventy-eight".