263213765790 has 16 divisors (see below), whose sum is σ = 631713037968. Its totient is φ = 70190337536.

The previous prime is 263213765741. The next prime is 263213765791. The reversal of 263213765790 is 97567312362.

263213765790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263213765791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4386896067 + ... + 4386896126.

It is an arithmetic number, because the mean of its divisors is an integer number (39482064873).

Almost surely, 2^263213765790 is an apocalyptic number.

263213765790 is an abundant number, since it is smaller than the sum of its proper divisors (368499272178).

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

263213765790 is a wasteful number, since it uses less digits than its factorization.

263213765790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773792203.

The product of its (nonzero) digits is 2857680, while the sum is 51.

The spelling of 263213765790 in words is "two hundred sixty-three billion, two hundred thirteen million, seven hundred sixty-five thousand, seven hundred ninety".