69938021021 has 8 divisors (see below), whose sum is σ = 76327308288. Its totient is φ = 63553948000.

The previous prime is 69938021009. The next prime is 69938021077. The reversal of 69938021021 is 12012083996.

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

It is a cyclic number.

It is not a de Polignac number, because 69938021021 - 2¹⁴ = 69938004637 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 69938021021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69938021521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275485 + ... + 1329186.

It is an arithmetic number, because the mean of its divisors is an integer number (9540913536).

Almost surely, 2^69938021021 is an apocalyptic number.

It is an amenable number.

69938021021 is a deficient number, since it is larger than the sum of its proper divisors (6389287267).

69938021021 is a wasteful number, since it uses less digits than its factorization.

69938021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607123.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 69938021021 in words is "sixty-nine billion, nine hundred thirty-eight million, twenty-one thousand, twenty-one".