2516394777 has 32 divisors (see below), whose sum is σ = 3676928640. Its totient is φ = 1521400320.

The previous prime is 2516394767. The next prime is 2516394841. The reversal of 2516394777 is 7774936152.

It is a happy number.

It is not a de Polignac number, because 2516394777 - 2⁴ = 2516394761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2516394707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1203549 + ... + 1205637.

It is an arithmetic number, because the mean of its divisors is an integer number (114904020).

Almost surely, 2^2516394777 is an apocalyptic number.

It is an amenable number.

2516394777 is a deficient number, since it is larger than the sum of its proper divisors (1160533863).

2516394777 is a wasteful number, since it uses less digits than its factorization.

2516394777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633.

The product of its digits is 2222640, while the sum is 51.

The square root of 2516394777 is about 50163.6798590375. The cubic root of 2516394777 is about 1360.1691645472.

The spelling of 2516394777 in words is "two billion, five hundred sixteen million, three hundred ninety-four thousand, seven hundred seventy-seven".