2979881692 has 6 divisors (see below), whose sum is σ = 5214792968. Its totient is φ = 1489940844.

The previous prime is 2979881677. The next prime is 2979881693. The reversal of 2979881692 is 2961889792.

It is a self number, because there is not a number n which added to its sum of digits gives 2979881692.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2979881693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372485208 + ... + 372485215.

Almost surely, 2^2979881692 is an apocalyptic number.

It is an amenable number.

2979881692 is a deficient number, since it is larger than the sum of its proper divisors (2234911276).

2979881692 is a wasteful number, since it uses less digits than its factorization.

2979881692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744970427 (or 744970425 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 61.

The square root of 2979881692 is about 54588.2926276322. The cubic root of 2979881692 is about 1439.0183787099.

The spelling of 2979881692 in words is "two billion, nine hundred seventy-nine million, eight hundred eighty-one thousand, six hundred ninety-two".