83797977849 has 8 divisors (see below), whose sum is σ = 112836881472. Its totient is φ = 55312196400.

The previous prime is 83797977811. The next prime is 83797977871. The reversal of 83797977849 is 94877979738.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83797977849 - 2⁷ = 83797977721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83797977049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138280189 + ... + 138280794.

It is an arithmetic number, because the mean of its divisors is an integer number (14104610184).

Almost surely, 2^83797977849 is an apocalyptic number.

It is an amenable number.

83797977849 is a deficient number, since it is larger than the sum of its proper divisors (29038903623).

83797977849 is a wasteful number, since it uses less digits than its factorization.

83797977849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276561087.

The product of its digits is 1344252672, while the sum is 78.

The spelling of 83797977849 in words is "eighty-three billion, seven hundred ninety-seven million, nine hundred seventy-seven thousand, eight hundred forty-nine".