1227234190644 has 96 divisors (see below), whose sum is σ = 3966817612800. Its totient is φ = 318762125280.

The previous prime is 1227234190639. The next prime is 1227234190661. The reversal of 1227234190644 is 4460914327221.

1227234190644 is a `hidden beast` number, since 1 + 227 + 2 + 3 + 419 + 0 + 6 + 4 + 4 = 666.

It is a super-2 number, since 2×1227234190644² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1227234190644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73779214 + ... + 73795845.

It is an arithmetic number, because the mean of its divisors is an integer number (41321016800).

Almost surely, 2^{1227234190644} is an apocalyptic number.

1227234190644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1227234190644 is an abundant number, since it is smaller than the sum of its proper divisors (2739583422156).

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

1227234190644 is a wasteful number, since it uses less digits than its factorization.

1227234190644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147575090 (or 147575082 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 1227234190644 in words is "one trillion, two hundred twenty-seven billion, two hundred thirty-four million, one hundred ninety thousand, six hundred forty-four".