2775281697948 has 96 divisors (see below), whose sum is σ = 6645314269440. Its totient is φ = 900984913920.

The previous prime is 2775281697899. The next prime is 2775281697961. The reversal of 2775281697948 is 8497961825772.

It is a self number, because there is not a number n which added to its sum of digits gives 2775281697948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268631143 + ... + 268641473.

It is an arithmetic number, because the mean of its divisors is an integer number (69222023640).

Almost surely, 2^{2775281697948} is an apocalyptic number.

It is an amenable number.

2775281697948 is an abundant number, since it is smaller than the sum of its proper divisors (3870032571492).

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

2775281697948 is a wasteful number, since it uses less digits than its factorization.

2775281697948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827 (or 11825 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 75.

The spelling of 2775281697948 in words is "two trillion, seven hundred seventy-five billion, two hundred eighty-one million, six hundred ninety-seven thousand, nine hundred forty-eight".