2077125721 has 16 divisors (see below), whose sum is σ = 2359110528. Its totient is φ = 1812067200.

The previous prime is 2077125697. The next prime is 2077125727. The reversal of 2077125721 is 1275217702.

It is a cyclic number.

It is not a de Polignac number, because 2077125721 - 2⁵ = 2077125689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2077125727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5245 + ... + 64666.

It is an arithmetic number, because the mean of its divisors is an integer number (147444408).

Almost surely, 2^2077125721 is an apocalyptic number.

It is an amenable number.

2077125721 is a deficient number, since it is larger than the sum of its proper divisors (281984807).

2077125721 is a wasteful number, since it uses less digits than its factorization.

2077125721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70032.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 2077125721 is about 45575.4947422406. The cubic root of 2077125721 is about 1275.9126048131.

The spelling of 2077125721 in words is "two billion, seventy-seven million, one hundred twenty-five thousand, seven hundred twenty-one".