2878511428 has 36 divisors (see below), whose sum is σ = 5570812800. Its totient is φ = 1300262496.

The previous prime is 2878511407. The next prime is 2878511437. The reversal of 2878511428 is 8241158782.

It is a super-2 number, since 2×2878511428² = 16571656082253198368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13528 + ... + 77071.

It is an arithmetic number, because the mean of its divisors is an integer number (154744800).

Almost surely, 2^2878511428 is an apocalyptic number.

It is an amenable number.

2878511428 is a deficient number, since it is larger than the sum of its proper divisors (2692301372).

2878511428 is a wasteful number, since it uses less digits than its factorization.

2878511428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90676 (or 90661 counting only the distinct ones).

The product of its digits is 286720, while the sum is 46.

The square root of 2878511428 is about 53651.7607166811. The cubic root of 2878511428 is about 1422.5121549323.

The spelling of 2878511428 in words is "two billion, eight hundred seventy-eight million, five hundred eleven thousand, four hundred twenty-eight".