2179442753890 has 16 divisors (see below), whose sum is σ = 4058272714680. Its totient is φ = 841715822080.

The previous prime is 2179442753879. The next prime is 2179442753893. The reversal of 2179442753890 is 983572449712.

It can be written as a sum of positive squares in 4 ways, for example, as 2136236558569 + 43206195321 = 1461587^2 + 207861^2 .

It is a super-2 number, since 2×2179442753890² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2179442753893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3757659631 + ... + 3757660210.

Almost surely, 2^{2179442753890} is an apocalyptic number.

2179442753890 is a deficient number, since it is larger than the sum of its proper divisors (1878829960790).

2179442753890 is a wasteful number, since it uses less digits than its factorization.

2179442753890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515319877.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 2179442753890 in words is "two trillion, one hundred seventy-nine billion, four hundred forty-two million, seven hundred fifty-three thousand, eight hundred ninety".