2123920467 has 16 divisors (see below), whose sum is σ = 3155328000. Its totient is φ = 1411996392.

The previous prime is 2123920429. The next prime is 2123920489. The reversal of 2123920467 is 7640293212.

It is not a de Polignac number, because 2123920467 - 2²⁷ = 1989702739 is a prime.

It is a super-2 number, since 2×2123920467² = 9022076300282996178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123920867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99867 + ... + 119252.

It is an arithmetic number, because the mean of its divisors is an integer number (197208000).

Almost surely, 2^2123920467 is an apocalyptic number.

2123920467 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2123920467 is a deficient number, since it is larger than the sum of its proper divisors (1031407533).

2123920467 is a wasteful number, since it uses less digits than its factorization.

2123920467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219487 (or 219481 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2123920467 is about 46086.0116195793. The cubic root of 2123920467 is about 1285.4230499559.

The spelling of 2123920467 in words is "two billion, one hundred twenty-three million, nine hundred twenty thousand, four hundred sixty-seven".