2949995864 has 8 divisors (see below), whose sum is σ = 5531242260. Its totient is φ = 1474997928.

The previous prime is 2949995861. The next prime is 2949995899. The reversal of 2949995864 is 4685999492.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2949995864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2949995861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184374734 + ... + 184374749.

Almost surely, 2^2949995864 is an apocalyptic number.

It is an amenable number.

2949995864 is a deficient number, since it is larger than the sum of its proper divisors (2581246396).

2949995864 is a wasteful number, since it uses less digits than its factorization.

2949995864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368749489 (or 368749485 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 65.

The square root of 2949995864 is about 54313.8643810215. The cubic root of 2949995864 is about 1434.1914717548.

The spelling of 2949995864 in words is "two billion, nine hundred forty-nine million, nine hundred ninety-five thousand, eight hundred sixty-four".