1227794946040 has 128 divisors (see below), whose sum is σ = 3258666936000. Its totient is φ = 411959697408.

The previous prime is 1227794946031. The next prime is 1227794946043. The reversal of 1227794946040 is 406494977221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227794946043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2138310 + ... + 2651029.

Almost surely, 2^{1227794946040} is an apocalyptic number.

1227794946040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1227794946040 is an abundant number, since it is smaller than the sum of its proper divisors (2030871989960).

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

1227794946040 is a wasteful number, since it uses less digits than its factorization.

1227794946040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789409 (or 4789405 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 1227794946040 in words is "one trillion, two hundred twenty-seven billion, seven hundred ninety-four million, nine hundred forty-six thousand, forty".