263263578078 has 16 divisors (see below), whose sum is σ = 526644034560. Its totient is φ = 87735046296.

The previous prime is 263263578077. The next prime is 263263578133. The reversal of 263263578078 is 870875362362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263263578073) 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, 4840638 + ... + 4894721.

It is an arithmetic number, because the mean of its divisors is an integer number (32915252160).

Almost surely, 2^263263578078 is an apocalyptic number.

263263578078 is an abundant number, since it is smaller than the sum of its proper divisors (263380456482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263263578078 is a wasteful number, since it uses less digits than its factorization.

263263578078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739871.

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 263263578078 in words is "two hundred sixty-three billion, two hundred sixty-three million, five hundred seventy-eight thousand, seventy-eight".