2077725128 has 8 divisors (see below), whose sum is σ = 3895734630. Its totient is φ = 1038862560.

The previous prime is 2077725113. The next prime is 2077725151. The reversal of 2077725128 is 8215277702.

It can be written as a sum of positive squares in only one way, i.e., 1911263524 + 166461604 = 43718^2 + 12902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129857813 + ... + 129857828.

Almost surely, 2^2077725128 is an apocalyptic number.

It is an amenable number.

2077725128 is a deficient number, since it is larger than the sum of its proper divisors (1818009502).

2077725128 is a wasteful number, since it uses less digits than its factorization.

2077725128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259715647 (or 259715643 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 2077725128 is about 45582.0702469732. The cubic root of 2077725128 is about 1276.0353252603.

The spelling of 2077725128 in words is "two billion, seventy-seven million, seven hundred twenty-five thousand, one hundred twenty-eight".