1283385104648 has 32 divisors (see below), whose sum is σ = 2534007326400. Its totient is φ = 608161739328.

The previous prime is 1283385104629. The next prime is 1283385104653. The reversal of 1283385104648 is 8464015833821.

It is a super-2 number, since 2×1283385104648² (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 1283385104648.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31974986 + ... + 32015097.

It is an arithmetic number, because the mean of its divisors is an integer number (79187728950).

Almost surely, 2^{1283385104648} is an apocalyptic number.

It is an amenable number.

1283385104648 is a deficient number, since it is larger than the sum of its proper divisors (1250622221752).

1283385104648 is a wasteful number, since it uses less digits than its factorization.

1283385104648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63990221 (or 63990217 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 53.

The spelling of 1283385104648 in words is "one trillion, two hundred eighty-three billion, three hundred eighty-five million, one hundred four thousand, six hundred forty-eight".