275277499980 has 192 divisors, whose sum is σ = 887263641600. Its totient is φ = 62466598656.

The previous prime is 275277499969. The next prime is 275277499993. The reversal of 275277499980 is 89994772572.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40700079 + ... + 40706841.

It is an arithmetic number, because the mean of its divisors is an integer number (4621164800).

Almost surely, 2^275277499980 is an apocalyptic number.

275277499980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275277499980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443631820800).

275277499980 is an abundant number, since it is smaller than the sum of its proper divisors (611986141620).

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

275277499980 is a wasteful number, since it uses less digits than its factorization.

275277499980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468 (or 7466 counting only the distinct ones).

The product of its (nonzero) digits is 160030080, while the sum is 69.

The spelling of 275277499980 in words is "two hundred seventy-five billion, two hundred seventy-seven million, four hundred ninety-nine thousand, nine hundred eighty".