99629143578 has 24 divisors (see below), whose sum is σ = 216257796768. Its totient is φ = 33148998792.

The previous prime is 99629143573. The next prime is 99629143583. The reversal of 99629143578 is 87534192699.

It is an interprime number because it is at equal distance from previous prime (99629143573) and next prime (99629143583).

It is not an unprimeable number, because it can be changed into a prime (99629143573) 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 11 ways as a sum of consecutive naturals, for example, 5049526 + ... + 5069217.

It is an arithmetic number, because the mean of its divisors is an integer number (9010741532).

Almost surely, 2^99629143578 is an apocalyptic number.

99629143578 is an abundant number, since it is smaller than the sum of its proper divisors (116628653190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99629143578 is a wasteful number, since it uses less digits than its factorization.

99629143578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119298 (or 10119295 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 99629143578 in words is "ninety-nine billion, six hundred twenty-nine million, one hundred forty-three thousand, five hundred seventy-eight".