99880620829 has 16 divisors (see below), whose sum is σ = 115619408640. Its totient is φ = 85274703360.

The previous prime is 99880620821. The next prime is 99880620869. The reversal of 99880620829 is 92802608899.

It is not a de Polignac number, because 99880620829 - 2³ = 99880620821 is a prime.

It is a super-2 number, since 2×99880620829² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99880620821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490224 + ... + 663385.

It is an arithmetic number, because the mean of its divisors is an integer number (7226213040).

Almost surely, 2^99880620829 is an apocalyptic number.

It is an amenable number.

99880620829 is a deficient number, since it is larger than the sum of its proper divisors (15738787811).

99880620829 is a wasteful number, since it uses less digits than its factorization.

99880620829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154100.

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 99880620829 in words is "ninety-nine billion, eight hundred eighty million, six hundred twenty thousand, eight hundred twenty-nine".