2231963838640 has 40 divisors (see below), whose sum is σ = 5190398150400. Its totient is φ = 892599346176.

The previous prime is 2231963838547. The next prime is 2231963838661. The reversal of 2231963838640 is 468383691322.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×2231963838640³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2522889 + ... + 3290728.

It is an arithmetic number, because the mean of its divisors is an integer number (129759953760).

Almost surely, 2^{2231963838640} is an apocalyptic number.

2231963838640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231963838640 is an abundant number, since it is smaller than the sum of its proper divisors (2958434311760).

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

2231963838640 is a wasteful number, since it uses less digits than its factorization.

2231963838640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818429 (or 5818423 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 2231963838640 in words is "two trillion, two hundred thirty-one billion, nine hundred sixty-three million, eight hundred thirty-eight thousand, six hundred forty".