4919111649 has 6 divisors (see below), whose sum is σ = 7105383506. Its totient is φ = 3279407760.

The previous prime is 4919111641. The next prime is 4919111657. The reversal of 4919111649 is 9461119194.

4919111649 is a `hidden beast` number, since 491 + 9 + 1 + 116 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (4919111641) and next prime (4919111657).

It can be written as a sum of positive squares in only one way, i.e., 4904481024 + 14630625 = 70032^2 + 3825^2 .

It is not a de Polignac number, because 4919111649 - 2³ = 4919111641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4919111641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 273283972 + ... + 273283989.

Almost surely, 2^4919111649 is an apocalyptic number.

It is an amenable number.

4919111649 is a deficient number, since it is larger than the sum of its proper divisors (2186271857).

4919111649 is a wasteful number, since it uses less digits than its factorization.

4919111649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546567967 (or 546567964 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 4919111649 is about 70136.3789270590. The cubic root of 4919111649 is about 1700.7046270477.

The spelling of 4919111649 in words is "four billion, nine hundred nineteen million, one hundred eleven thousand, six hundred forty-nine".