2051115407 has 12 divisors (see below), whose sum is σ = 2258611320. Its totient is φ = 1861276560.

The previous prime is 2051115377. The next prime is 2051115419. The reversal of 2051115407 is 7045111502.

It is not a de Polignac number, because 2051115407 - 2¹⁴ = 2051099023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051115427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53069 + ... + 83177.

It is an arithmetic number, because the mean of its divisors is an integer number (188217610).

Almost surely, 2^2051115407 is an apocalyptic number.

2051115407 is a deficient number, since it is larger than the sum of its proper divisors (207495913).

2051115407 is a wasteful number, since it uses less digits than its factorization.

2051115407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30694 (or 30683 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 2051115407 is about 45289.2416253573. The cubic root of 2051115407 is about 1270.5644476718.

Adding to 2051115407 its reverse (7045111502), we get a palindrome (9096226909).

The spelling of 2051115407 in words is "two billion, fifty-one million, one hundred fifteen thousand, four hundred seven".