1213611047564 has 6 divisors (see below), whose sum is σ = 2123819333244. Its totient is φ = 606805523780.

The previous prime is 1213611047557. The next prime is 1213611047569. The reversal of 1213611047564 is 4657401163121.

It is not an unprimeable number, because it can be changed into a prime (1213611047569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151701380942 + ... + 151701380949.

It is an arithmetic number, because the mean of its divisors is an integer number (353969888874).

Almost surely, 2^{1213611047564} is an apocalyptic number.

It is an amenable number.

1213611047564 is a deficient number, since it is larger than the sum of its proper divisors (910208285680).

1213611047564 is a wasteful number, since it uses less digits than its factorization.

1213611047564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303402761895 (or 303402761893 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 1213611047564 in words is "one trillion, two hundred thirteen billion, six hundred eleven million, forty-seven thousand, five hundred sixty-four".