275781080148 has 48 divisors (see below), whose sum is σ = 774122334720. Its totient is φ = 74647509984.

The previous prime is 275781080123. The next prime is 275781080149. The reversal of 275781080148 is 841080187572.

It is a self number, because there is not a number n which added to its sum of digits gives 275781080148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275781080149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86395986 + ... + 86399177.

It is an arithmetic number, because the mean of its divisors is an integer number (16127548640).

Almost surely, 2^275781080148 is an apocalyptic number.

275781080148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

275781080148 is an abundant number, since it is smaller than the sum of its proper divisors (498341254572).

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

275781080148 is a wasteful number, since it uses less digits than its factorization.

275781080148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172795196 (or 172795194 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 51.

The spelling of 275781080148 in words is "two hundred seventy-five billion, seven hundred eighty-one million, eighty thousand, one hundred forty-eight".