2778252996 has 12 divisors (see below), whose sum is σ = 6482590352. Its totient is φ = 926084328.

The previous prime is 2778252977. The next prime is 2778253001. The reversal of 2778252996 is 6992528772.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×2778252996³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115760530 + ... + 115760553.

Almost surely, 2^2778252996 is an apocalyptic number.

It is an amenable number.

2778252996 is an abundant number, since it is smaller than the sum of its proper divisors (3704337356).

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

2778252996 is a wasteful number, since it uses less digits than its factorization.

2778252996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231521090 (or 231521088 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 2778252996 is about 52709.1357925739. The cubic root of 2778252996 is about 1405.8012671797.

The spelling of 2778252996 in words is "two billion, seven hundred seventy-eight million, two hundred fifty-two thousand, nine hundred ninety-six".