4957145649 has 15 divisors (see below), whose sum is σ = 7406065513. Its totient is φ = 3304341324.

The previous prime is 4957145621. The next prime is 4957145689. The reversal of 4957145649 is 9465417594.

The square root of 4957145649 is 70407.

It is a perfect power (a square), and thus also a powerful number.

4957145649 is a `hidden beast` number, since 4 + 9 + 5 + 71 + 4 + 564 + 9 = 666.

It is not a de Polignac number, because 4957145649 - 2¹⁹ = 4956621361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4957145595 and 4957145604.

It is not an unprimeable number, because it can be changed into a prime (4957145689) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 629752 + ... + 637574.

Almost surely, 2^4957145649 is an apocalyptic number.

4957145649 is the 70407-th square number.

4957145649 is the 35204-th centered octagonal number.

It is an amenable number.

4957145649 is a deficient number, since it is larger than the sum of its proper divisors (2448919864).

4957145649 is an frugal number, since it uses more digits than its factorization.

4957145649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15658 (or 7826 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The cubic root of 4957145649 is about 1705.0765953728.

The spelling of 4957145649 in words is "four billion, nine hundred fifty-seven million, one hundred forty-five thousand, six hundred forty-nine".