1929102930021 has 16 divisors (see below), whose sum is σ = 2712689815040. Its totient is φ = 1216051179120.

The previous prime is 1929102929969. The next prime is 1929102930113. The reversal of 1929102930021 is 1200392019291.

It is not a de Polignac number, because 1929102930021 - 2¹⁴ = 1929102913637 is a prime.

It is a super-2 number, since 2×1929102930021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1929102930121) 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, 32325745 + ... + 32385366.

It is an arithmetic number, because the mean of its divisors is an integer number (169543113440).

Almost surely, 2^{1929102930021} is an apocalyptic number.

It is an amenable number.

1929102930021 is a deficient number, since it is larger than the sum of its proper divisors (783586885019).

1929102930021 is a wasteful number, since it uses less digits than its factorization.

1929102930021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64711656.

The product of its (nonzero) digits is 17496, while the sum is 39.

The spelling of 1929102930021 in words is "one trillion, nine hundred twenty-nine billion, one hundred two million, nine hundred thirty thousand, twenty-one".