2051456641 has 16 divisors (see below), whose sum is σ = 2307279744. Its totient is φ = 1809777024.

The previous prime is 2051456633. The next prime is 2051456653. The reversal of 2051456641 is 1466541502.

It is a cyclic number.

It is not a de Polignac number, because 2051456641 - 2³ = 2051456633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2051456597 and 2051456606.

It is not an unprimeable number, because it can be changed into a prime (2051456041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484365 + ... + 488581.

It is an arithmetic number, because the mean of its divisors is an integer number (144204984).

Almost surely, 2^2051456641 is an apocalyptic number.

It is an amenable number.

2051456641 is a deficient number, since it is larger than the sum of its proper divisors (255823103).

2051456641 is a wasteful number, since it uses less digits than its factorization.

2051456641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2051456641 is about 45293.0087430720. The cubic root of 2051456641 is about 1270.6349029546.

The spelling of 2051456641 in words is "two billion, fifty-one million, four hundred fifty-six thousand, six hundred forty-one".