616077984891 has 8 divisors (see below), whose sum is σ = 821721854464. Its totient is φ = 410576385960.

The previous prime is 616077984883. The next prime is 616077984931. The reversal of 616077984891 is 198489770616.

It is a happy number.

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

It is not a de Polignac number, because 616077984891 - 2³ = 616077984883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616077984091) 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 in 7 ways as a sum of consecutive naturals, for example, 35557555 + ... + 35574876.

It is an arithmetic number, because the mean of its divisors is an integer number (102715231808).

Almost surely, 2^616077984891 is an apocalyptic number.

616077984891 is a deficient number, since it is larger than the sum of its proper divisors (205643869573).

616077984891 is a wasteful number, since it uses less digits than its factorization.

616077984891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71135321.

The product of its (nonzero) digits is 36578304, while the sum is 66.

The spelling of 616077984891 in words is "six hundred sixteen billion, seventy-seven million, nine hundred eighty-four thousand, eight hundred ninety-one".