1283398858975 has 6 divisors (see below), whose sum is σ = 1591414585160. Its totient is φ = 1026719087160.

The previous prime is 1283398858969. The next prime is 1283398859023. The reversal of 1283398858975 is 5798588933821.

It is not a de Polignac number, because 1283398858975 - 2¹⁷ = 1283398727903 is a prime.

It is a super-2 number, since 2×1283398858975² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25667977155 + ... + 25667977204.

Almost surely, 2^{1283398858975} is an apocalyptic number.

1283398858975 is a deficient number, since it is larger than the sum of its proper divisors (308015726185).

1283398858975 is an equidigital number, since it uses as much as digits as its factorization.

1283398858975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51335954369 (or 51335954364 counting only the distinct ones).

The product of its digits is 1045094400, while the sum is 76.

The spelling of 1283398858975 in words is "one trillion, two hundred eighty-three billion, three hundred ninety-eight million, eight hundred fifty-eight thousand, nine hundred seventy-five".