2778025972 has 12 divisors (see below), whose sum is σ = 4861916416. Its totient is φ = 1388907000.

The previous prime is 2778025963. The next prime is 2778026021. The reversal of 2778025972 is 2795208772.

It is a happy number.

It is a super-2 number, since 2×2778025972² = 15434856602213089568, which contains 22 as substring.

It is a congruent number.

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, 80347 + ... + 109597.

Almost surely, 2^2778025972 is an apocalyptic number.

It is an amenable number.

2778025972 is a deficient number, since it is larger than the sum of its proper divisors (2083890444).

2778025972 is a wasteful number, since it uses less digits than its factorization.

2778025972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52998 (or 52996 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 2778025972 is about 52706.9821940130. The cubic root of 2778025972 is about 1405.7629746122.

The spelling of 2778025972 in words is "two billion, seven hundred seventy-eight million, twenty-five thousand, nine hundred seventy-two".