29863919397980 has 24 divisors (see below), whose sum is σ = 62715247813680. Its totient is φ = 11945374030080.

The previous prime is 29863919397971. The next prime is 29863919398073. The reversal of 29863919397980 is 8979391936892.

It is a super-2 number, since 2×29863919397980² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10840781 + ... + 13313540.

It is an arithmetic number, because the mean of its divisors is an integer number (2613135325570).

Almost surely, 2^{29863919397980} is an apocalyptic number.

29863919397980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29863919397980 is an abundant number, since it is smaller than the sum of its proper divisors (32851328415700).

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

29863919397980 is a wasteful number, since it uses less digits than its factorization.

29863919397980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24216149 (or 24216147 counting only the distinct ones).

The product of its (nonzero) digits is 2857026816, while the sum is 83.

The spelling of 29863919397980 in words is "twenty-nine trillion, eight hundred sixty-three billion, nine hundred nineteen million, three hundred ninety-seven thousand, nine hundred eighty".