99178861352 has 8 divisors (see below), whose sum is σ = 185960365050. Its totient is φ = 49589430672.

The previous prime is 99178861351. The next prime is 99178861357. The reversal of 99178861352 is 25316887199.

It can be written as a sum of positive squares in only one way, i.e., 74569409476 + 24609451876 = 273074^2 + 156874^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 99178861291 and 99178861300.

It is not an unprimeable number, because it can be changed into a prime (99178861351) 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, 6198678827 + ... + 6198678842.

Almost surely, 2^99178861352 is an apocalyptic number.

It is an amenable number.

99178861352 is a deficient number, since it is larger than the sum of its proper divisors (86781503698).

99178861352 is a wasteful number, since it uses less digits than its factorization.

99178861352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12397357675 (or 12397357671 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 59.

The spelling of 99178861352 in words is "ninety-nine billion, one hundred seventy-eight million, eight hundred sixty-one thousand, three hundred fifty-two".