263875154240 has 56 divisors (see below), whose sum is σ = 633300467712. Its totient is φ = 104718942720.

The previous prime is 263875154237. The next prime is 263875154269. The reversal of 263875154240 is 42451578362.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3205856 + ... + 3287135.

Almost surely, 2^263875154240 is an apocalyptic number.

263875154240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263875154240 is an abundant number, since it is smaller than the sum of its proper divisors (369425313472).

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

263875154240 is a wasteful number, since it uses less digits than its factorization.

263875154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493135 (or 6493125 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 263875154240 in words is "two hundred sixty-three billion, eight hundred seventy-five million, one hundred fifty-four thousand, two hundred forty".