265478265478 has 16 divisors (see below), whose sum is σ = 402203792880. Its totient is φ = 131410620000.

The previous prime is 265478265443. The next prime is 265478265497. The reversal of 265478265478 is 874562874562.

265478265478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 1933633 + ... + 2066371.

It is an arithmetic number, because the mean of its divisors is an integer number (25137737055).

Almost surely, 2^265478265478 is an apocalyptic number.

265478265478 is a deficient number, since it is larger than the sum of its proper divisors (136725527402).

265478265478 is a wasteful number, since it uses less digits than its factorization.

265478265478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142743.

The product of its digits is 180633600, while the sum is 64.

The spelling of 265478265478 in words is "two hundred sixty-five billion, four hundred seventy-eight million, two hundred sixty-five thousand, four hundred seventy-eight".