1914663949 has 6 divisors (see below), whose sum is σ = 2104548110. Its totient is φ = 1740603480.

The previous prime is 1914663931. The next prime is 1914663983. The reversal of 1914663949 is 9493664191.

It can be written as a sum of positive squares in only one way, i.e., 1590015625 + 324648324 = 39875^2 + 18018^2 .

It is not a de Polignac number, because 1914663949 - 2²³ = 1906275341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1914663896 and 1914663905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914664949) 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, 7911714 + ... + 7911955.

Almost surely, 2^1914663949 is an apocalyptic number.

It is an amenable number.

1914663949 is a deficient number, since it is larger than the sum of its proper divisors (189884161).

1914663949 is a wasteful number, since it uses less digits than its factorization.

1914663949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15823691 (or 15823680 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 1914663949 is about 43756.8731629672. The cubic root of 1914663949 is about 1241.7405207926.

The spelling of 1914663949 in words is "one billion, nine hundred fourteen million, six hundred sixty-three thousand, nine hundred forty-nine".