1285148948752 has 40 divisors (see below), whose sum is σ = 2522375254080. Its totient is φ = 634258235520.

The previous prime is 1285148948723. The next prime is 1285148948761. The reversal of 1285148948752 is 2578498415821.

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, 942274 + ... + 1859617.

It is an arithmetic number, because the mean of its divisors is an integer number (63059381352).

Almost surely, 2^{1285148948752} is an apocalyptic number.

It is an amenable number.

1285148948752 is a deficient number, since it is larger than the sum of its proper divisors (1237226305328).

1285148948752 is a wasteful number, since it uses less digits than its factorization.

1285148948752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802271 (or 2802265 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 64.

The spelling of 1285148948752 in words is "one trillion, two hundred eighty-five billion, one hundred forty-eight million, nine hundred forty-eight thousand, seven hundred fifty-two".