99780342481 has 8 divisors (see below), whose sum is σ = 104006620160. Its totient is φ = 95634565488.

The previous prime is 99780342469. The next prime is 99780342523. The reversal of 99780342481 is 18424308799.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99780342481 is a prime.

It is a super-2 number, since 2×99780342481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99780342461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20122641 + ... + 20127598.

It is an arithmetic number, because the mean of its divisors is an integer number (13000827520).

Almost surely, 2^99780342481 is an apocalyptic number.

It is an amenable number.

99780342481 is a deficient number, since it is larger than the sum of its proper divisors (4226277679).

99780342481 is a wasteful number, since it uses less digits than its factorization.

99780342481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40250343.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 99780342481 in words is "ninety-nine billion, seven hundred eighty million, three hundred forty-two thousand, four hundred eighty-one".