1949709616 has 10 divisors (see below), whose sum is σ = 3777562412. Its totient is φ = 974854800.

The previous prime is 1949709599. The next prime is 1949709647. The reversal of 1949709616 is 6169079491.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60928410 + ... + 60928441.

Almost surely, 2^1949709616 is an apocalyptic number.

1949709616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1949709616 is a deficient number, since it is larger than the sum of its proper divisors (1827852796).

1949709616 is a wasteful number, since it uses less digits than its factorization.

1949709616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121856859 (or 121856853 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 1949709616 is about 44155.5162578811. The cubic root of 1949709616 is about 1249.2709596294.

The spelling of 1949709616 in words is "one billion, nine hundred forty-nine million, seven hundred nine thousand, six hundred sixteen".