275280077780 has 24 divisors (see below), whose sum is σ = 578785530120. Its totient is φ = 109979199360.

The previous prime is 275280077777. The next prime is 275280077783. The reversal of 275280077780 is 87770082572.

It is an interprime number because it is at equal distance from previous prime (275280077777) and next prime (275280077783).

It can be written as a sum of positive squares in 4 ways, for example, as 28751044 + 275251326736 = 5362^2 + 524644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275280077783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8284991 + ... + 8318150.

It is an arithmetic number, because the mean of its divisors is an integer number (24116063755).

Almost surely, 2^275280077780 is an apocalyptic number.

275280077780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275280077780 is an abundant number, since it is smaller than the sum of its proper divisors (303505452340).

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

275280077780 is a wasteful number, since it uses less digits than its factorization.

275280077780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16603979 (or 16603977 counting only the distinct ones).

The product of its (nonzero) digits is 3073280, while the sum is 53.

The spelling of 275280077780 in words is "two hundred seventy-five billion, two hundred eighty million, seventy-seven thousand, seven hundred eighty".