2231945277798 has 32 divisors (see below), whose sum is σ = 4744443787776. Its totient is φ = 697555691648.

The previous prime is 2231945277791. The next prime is 2231945277803. The reversal of 2231945277798 is 8977725491322.

It is a super-3 number, since 3×2231945277798³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231945277791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41573586 + ... + 41627237.

It is an arithmetic number, because the mean of its divisors is an integer number (148263868368).

Almost surely, 2^{2231945277798} is an apocalyptic number.

2231945277798 is an abundant number, since it is smaller than the sum of its proper divisors (2512498509978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231945277798 is a wasteful number, since it uses less digits than its factorization.

2231945277798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83201108.

The product of its digits is 106686720, while the sum is 66.

The spelling of 2231945277798 in words is "two trillion, two hundred thirty-one billion, nine hundred forty-five million, two hundred seventy-seven thousand, seven hundred ninety-eight".