2651549128 has 16 divisors (see below), whose sum is σ = 5004581760. Its totient is φ = 1316994000.

The previous prime is 2651549113. The next prime is 2651549233. The reversal of 2651549128 is 8219451562.

2651549128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1096288 + ... + 1098703.

It is an arithmetic number, because the mean of its divisors is an integer number (312786360).

Almost surely, 2^2651549128 is an apocalyptic number.

It is an amenable number.

2651549128 is a deficient number, since it is larger than the sum of its proper divisors (2353032632).

2651549128 is a wasteful number, since it uses less digits than its factorization.

2651549128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195148 (or 2195144 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 2651549128 is about 51493.1949678790. The cubic root of 2651549128 is about 1384.0971021784.

The spelling of 2651549128 in words is "two billion, six hundred fifty-one million, five hundred forty-nine thousand, one hundred twenty-eight".