77198077995 has 8 divisors (see below), whose sum is σ = 123516924816. Its totient is φ = 41172308256.

The previous prime is 77198077951. The next prime is 77198078033. The reversal of 77198077995 is 59977089177.

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

It is not a de Polignac number, because 77198077995 - 2⁷ = 77198077867 is a prime.

It is a super-2 number, since 2×77198077995² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 2573269252 + ... + 2573269281.

It is an arithmetic number, because the mean of its divisors is an integer number (15439615602).

Almost surely, 2^77198077995 is an apocalyptic number.

77198077995 is a deficient number, since it is larger than the sum of its proper divisors (46318846821).

77198077995 is a wasteful number, since it uses less digits than its factorization.

77198077995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146538541.

The product of its (nonzero) digits is 70013160, while the sum is 69.

The spelling of 77198077995 in words is "seventy-seven billion, one hundred ninety-eight million, seventy-seven thousand, nine hundred ninety-five".