1229481556860 has 48 divisors (see below), whose sum is σ = 3442596496416. Its totient is φ = 327857164032.

The previous prime is 1229481556847. The next prime is 1229481556861. The reversal of 1229481556860 is 686551849221.

It is a self number, because there is not a number n which added to its sum of digits gives 1229481556860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229481556861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8174094 + ... + 8323146.

It is an arithmetic number, because the mean of its divisors is an integer number (71720760342).

Almost surely, 2^{1229481556860} is an apocalyptic number.

1229481556860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1229481556860 is an abundant number, since it is smaller than the sum of its proper divisors (2213114939556).

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

1229481556860 is a wasteful number, since it uses less digits than its factorization.

1229481556860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286542 (or 286540 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 1229481556860 in words is "one trillion, two hundred twenty-nine billion, four hundred eighty-one million, five hundred fifty-six thousand, eight hundred sixty".