1284520953611 has 24 divisors (see below), whose sum is σ = 1524786001200. Its totient is φ = 1078653240000.

The previous prime is 1284520953593. The next prime is 1284520953613. The reversal of 1284520953611 is 1163590254821.

It is a de Polignac number, because none of the positive numbers 2^k-1284520953611 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1284520953613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105836 + ... + 1606313.

It is an arithmetic number, because the mean of its divisors is an integer number (63532750050).

Almost surely, 2^{1284520953611} is an apocalyptic number.

1284520953611 is a deficient number, since it is larger than the sum of its proper divisors (240265047589).

1284520953611 is a wasteful number, since it uses less digits than its factorization.

1284520953611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712475 (or 1712468 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 1284520953611 in words is "one trillion, two hundred eighty-four billion, five hundred twenty million, nine hundred fifty-three thousand, six hundred eleven".