1227535880988 has 48 divisors (see below), whose sum is σ = 2879080364160. Its totient is φ = 407060480064.

The previous prime is 1227535880929. The next prime is 1227535881023. The reversal of 1227535880988 is 8890885357221.

It is a super-2 number, since 2×1227535880988² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31324695 + ... + 31363857.

It is an arithmetic number, because the mean of its divisors is an integer number (59980840920).

Almost surely, 2^{1227535880988} is an apocalyptic number.

It is an amenable number.

1227535880988 is an abundant number, since it is smaller than the sum of its proper divisors (1651544483172).

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

1227535880988 is a wasteful number, since it uses less digits than its factorization.

1227535880988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52626 (or 52624 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 66.

The spelling of 1227535880988 in words is "one trillion, two hundred twenty-seven billion, five hundred thirty-five million, eight hundred eighty thousand, nine hundred eighty-eight".