1428791834997 has 16 divisors (see below), whose sum is σ = 2228135416000. Its totient is φ = 902394842832.

The previous prime is 1428791834989. The next prime is 1428791835001. The reversal of 1428791834997 is 7994381978241.

1428791834997 is a `hidden beast` number, since 1 + 42 + 8 + 7 + 91 + 8 + 3 + 499 + 7 = 666.

It is not a de Polignac number, because 1428791834997 - 2³ = 1428791834989 is a prime.

It is a super-2 number, since 2×1428791834997² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428791834597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1392584122 + ... + 1392585147.

It is an arithmetic number, because the mean of its divisors is an integer number (139258463500).

Almost surely, 2^{1428791834997} is an apocalyptic number.

It is an amenable number.

1428791834997 is a deficient number, since it is larger than the sum of its proper divisors (799343581003).

1428791834997 is a wasteful number, since it uses less digits than its factorization.

1428791834997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785169297 (or 2785169291 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The spelling of 1428791834997 in words is "one trillion, four hundred twenty-eight billion, seven hundred ninety-one million, eight hundred thirty-four thousand, nine hundred ninety-seven".