2457621316 has 6 divisors (see below), whose sum is σ = 4300837310. Its totient is φ = 1228810656.

The previous prime is 2457621311. The next prime is 2457621373. The reversal of 2457621316 is 6131267542.

It can be written as a sum of positive squares in only one way, i.e., 1693651716 + 763969600 = 41154^2 + 27640^2 .

It is not an unprimeable number, because it can be changed into a prime (2457621311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307202661 + ... + 307202668.

Almost surely, 2^2457621316 is an apocalyptic number.

It is an amenable number.

2457621316 is a deficient number, since it is larger than the sum of its proper divisors (1843215994).

2457621316 is a wasteful number, since it uses less digits than its factorization.

2457621316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614405333 (or 614405331 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2457621316 is about 49574.4018219080. The cubic root of 2457621316 is about 1349.4961660797.

Adding to 2457621316 its reverse (6131267542), we get a palindrome (8588888858).

The spelling of 2457621316 in words is "two billion, four hundred fifty-seven million, six hundred twenty-one thousand, three hundred sixteen".