263141539380 has 60 divisors (see below), whose sum is σ = 825484760100. Its totient is φ = 70171076736.

The previous prime is 263141539337. The next prime is 263141539429. The reversal of 263141539380 is 83935141362.

263141539380 is a `hidden beast` number, since 2 + 6 + 31 + 4 + 1 + 539 + 3 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93217859856 + 169923679524 = 305316^2 + 412218^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 81214905 + ... + 81218144.

It is an arithmetic number, because the mean of its divisors is an integer number (13758079335).

Almost surely, 2^263141539380 is an apocalyptic number.

263141539380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263141539380 is an abundant number, since it is smaller than the sum of its proper divisors (562343220720).

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

263141539380 is a wasteful number, since it uses less digits than its factorization.

263141539380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162433070 (or 162433059 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 263141539380 in words is "two hundred sixty-three billion, one hundred forty-one million, five hundred thirty-nine thousand, three hundred eighty".