84780142088 has 16 divisors (see below), whose sum is σ = 158973535980. Its totient is φ = 42387199168.

The previous prime is 84780142081. The next prime is 84780142091. The reversal of 84780142088 is 88024108748.

It can be written as a sum of positive squares in 2 ways, for example, as 56938549924 + 27841592164 = 238618^2 + 166858^2 .

It is a super-2 number, since 2×84780142088² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84780142081) 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 in 3 ways as a sum of consecutive naturals, for example, 230831 + ... + 472062.

Almost surely, 2^84780142088 is an apocalyptic number.

It is an amenable number.

84780142088 is a deficient number, since it is larger than the sum of its proper divisors (74193393892).

84780142088 is a wasteful number, since it uses less digits than its factorization.

84780142088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717976 (or 717972 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 50.

The spelling of 84780142088 in words is "eighty-four billion, seven hundred eighty million, one hundred forty-two thousand, eighty-eight".