263953832652 has 90 divisors (see below), whose sum is σ = 693245692524. Its totient is φ = 87936558120.

The previous prime is 263953832641. The next prime is 263953832657. The reversal of 263953832652 is 256238359362.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

263953832652 is a `hidden beast` number, since 2 + 6 + 39 + 538 + 3 + 26 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (263953832657) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 144157377 + ... + 144159207.

Almost surely, 2^263953832652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263953832652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346622846262).

263953832652 is an abundant number, since it is smaller than the sum of its proper divisors (429291859872).

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

263953832652 is an frugal number, since it uses more digits than its factorization.

263953832652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693 (or 1836 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The spelling of 263953832652 in words is "two hundred sixty-three billion, nine hundred fifty-three million, eight hundred thirty-two thousand, six hundred fifty-two".