1285286952490 has 16 divisors (see below), whose sum is σ = 2435280541920. Its totient is φ = 487056108240.

The previous prime is 1285286952487. The next prime is 1285286952539. The reversal of 1285286952490 is 942596825821.

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, 3382333896 + ... + 3382334275.

It is an arithmetic number, because the mean of its divisors is an integer number (152205033870).

Almost surely, 2^{1285286952490} is an apocalyptic number.

1285286952490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285286952490 is a deficient number, since it is larger than the sum of its proper divisors (1149993589430).

1285286952490 is a wasteful number, since it uses less digits than its factorization.

1285286952490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764668197.

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 1285286952490 in words is "one trillion, two hundred eighty-five billion, two hundred eighty-six million, nine hundred fifty-two thousand, four hundred ninety".