20292251399 has 32 divisors (see below), whose sum is σ = 25632752256. Its totient is φ = 15666462720.

The previous prime is 20292251393. The next prime is 20292251417. The reversal of 20292251399 is 99315229202.

It is a cyclic number.

It is not a de Polignac number, because 20292251399 - 2⁴ = 20292251383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20292251393) 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 31 ways as a sum of consecutive naturals, for example, 230807 + ... + 306359.

It is an arithmetic number, because the mean of its divisors is an integer number (801023508).

Almost surely, 2^20292251399 is an apocalyptic number.

20292251399 is a deficient number, since it is larger than the sum of its proper divisors (5340500857).

20292251399 is a wasteful number, since it uses less digits than its factorization.

20292251399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75675.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 20292251399 in words is "twenty billion, two hundred ninety-two million, two hundred fifty-one thousand, three hundred ninety-nine".