263271157980 has 48 divisors (see below), whose sum is σ = 744316145664. Its totient is φ = 69524032320.

The previous prime is 263271157931. The next prime is 263271157991. The reversal of 263271157980 is 89751172362.

263271157980 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 an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21294076 + ... + 21306435.

It is an arithmetic number, because the mean of its divisors is an integer number (15506586368).

Almost surely, 2^263271157980 is an apocalyptic number.

263271157980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263271157980 is an abundant number, since it is smaller than the sum of its proper divisors (481044987684).

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

263271157980 is a wasteful number, since it uses less digits than its factorization.

263271157980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42600626 (or 42600624 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 263271157980 in words is "two hundred sixty-three billion, two hundred seventy-one million, one hundred fifty-seven thousand, nine hundred eighty".