1819290929212 has 24 divisors (see below), whose sum is σ = 3200582689920. Its totient is φ = 904843408560.

The previous prime is 1819290929201. The next prime is 1819290929257. The reversal of 1819290929212 is 2129290929181.

It is a super-2 number, since 2×1819290929212² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975339 + ... + 2142397.

It is an arithmetic number, because the mean of its divisors is an integer number (133357612080).

Almost surely, 2^{1819290929212} is an apocalyptic number.

It is an amenable number.

1819290929212 is a deficient number, since it is larger than the sum of its proper divisors (1381291760708).

1819290929212 is a wasteful number, since it uses less digits than its factorization.

1819290929212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169121 (or 1169119 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 55.

The spelling of 1819290929212 in words is "one trillion, eight hundred nineteen billion, two hundred ninety million, nine hundred twenty-nine thousand, two hundred twelve".