2051077645 has 32 divisors (see below), whose sum is σ = 2684666880. Its totient is φ = 1498590720.

The previous prime is 2051077621. The next prime is 2051077661. The reversal of 2051077645 is 5467701502.

It is a de Polignac number, because none of the positive numbers 2^k-2051077645 is a prime.

It is a super-3 number, since 3×2051077645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861697 + ... + 864073.

It is an arithmetic number, because the mean of its divisors is an integer number (83895840).

Almost surely, 2^2051077645 is an apocalyptic number.

It is an amenable number.

2051077645 is a deficient number, since it is larger than the sum of its proper divisors (633589235).

2051077645 is a wasteful number, since it uses less digits than its factorization.

2051077645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 2051077645 is about 45288.8247253117. The cubic root of 2051077645 is about 1270.5566503942.

The spelling of 2051077645 in words is "two billion, fifty-one million, seventy-seven thousand, six hundred forty-five".