4944781145 has 16 divisors (see below), whose sum is σ = 5984157312. Its totient is φ = 3922310400.

The previous prime is 4944781133. The next prime is 4944781147. The reversal of 4944781145 is 5411874494.

It is not a de Polignac number, because 4944781145 - 2⁶ = 4944781081 is a prime.

It is a super-2 number, since 2×4944781145² = 48901721143895022050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4944781145.

It is not an unprimeable number, because it can be changed into a prime (4944781147) 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, 419249 + ... + 430881.

It is an arithmetic number, because the mean of its divisors is an integer number (374009832).

Almost surely, 2^4944781145 is an apocalyptic number.

It is an amenable number.

4944781145 is a deficient number, since it is larger than the sum of its proper divisors (1039376167).

4944781145 is a wasteful number, since it uses less digits than its factorization.

4944781145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12352.

The product of its digits is 645120, while the sum is 47.

The square root of 4944781145 is about 70319.1378289012. The cubic root of 4944781145 is about 1703.6577695207.

The spelling of 4944781145 in words is "four billion, nine hundred forty-four million, seven hundred eighty-one thousand, one hundred forty-five".