6129021020819 has 4 divisors (see below), whose sum is σ = 6145721350944. Its totient is φ = 6112320690696.

The previous prime is 6129021020753. The next prime is 6129021020839. The reversal of 6129021020819 is 9180201209216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6129021020819 - 2¹⁶ = 6129020955283 is a prime.

It is a super-2 number, since 2×6129021020819² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6129021020839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8350164512 + ... + 8350165245.

It is an arithmetic number, because the mean of its divisors is an integer number (1536430337736).

Almost surely, 2^{6129021020819} is an apocalyptic number.

6129021020819 is a deficient number, since it is larger than the sum of its proper divisors (16700330125).

6129021020819 is a wasteful number, since it uses less digits than its factorization.

6129021020819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16700330124.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 6129021020819 in words is "six trillion, one hundred twenty-nine billion, twenty-one million, twenty thousand, eight hundred nineteen".