2193657336940 has 96 divisors (see below), whose sum is σ = 4663276531200. Its totient is φ = 866756405760.

The previous prime is 2193657336929. The next prime is 2193657336953. The reversal of 2193657336940 is 496337563912.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 655408347 + ... + 655411693.

It is an arithmetic number, because the mean of its divisors is an integer number (48575797200).

Almost surely, 2^{2193657336940} is an apocalyptic number.

2193657336940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2193657336940 is an abundant number, since it is smaller than the sum of its proper divisors (2469619194260).

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

2193657336940 is a wasteful number, since it uses less digits than its factorization.

2193657336940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 58.

The spelling of 2193657336940 in words is "two trillion, one hundred ninety-three billion, six hundred fifty-seven million, three hundred thirty-six thousand, nine hundred forty".