1926400140291 has 16 divisors (see below), whose sum is σ = 2803204684800. Its totient is φ = 1167028521120.

The previous prime is 1926400140289. The next prime is 1926400140299. The reversal of 1926400140291 is 1920410046291.

It is not a de Polignac number, because 1926400140291 - 2¹ = 1926400140289 is a prime.

It is a super-2 number, since 2×1926400140291² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1926400140299) 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, 12087520 + ... + 12245853.

It is an arithmetic number, because the mean of its divisors is an integer number (175200292800).

Almost surely, 2^{1926400140291} is an apocalyptic number.

1926400140291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1926400140291 is a deficient number, since it is larger than the sum of its proper divisors (876804544509).

1926400140291 is a wasteful number, since it uses less digits than its factorization.

1926400140291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24335786.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 1926400140291 in words is "one trillion, nine hundred twenty-six billion, four hundred million, one hundred forty thousand, two hundred ninety-one".