1287054245057 has 8 divisors (see below), whose sum is σ = 1475648783232. Its totient is φ = 1099642118400.

The previous prime is 1287054245051. The next prime is 1287054245111. The reversal of 1287054245057 is 7505424507821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1287054245057 - 2¹⁰ = 1287054244033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1287054244996 and 1287054245014.

It is not an unprimeable number, because it can be changed into a prime (1287054245051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295600544 + ... + 295604897.

It is an arithmetic number, because the mean of its divisors is an integer number (184456097904).

Almost surely, 2^{1287054245057} is an apocalyptic number.

It is an amenable number.

1287054245057 is a deficient number, since it is larger than the sum of its proper divisors (188594538175).

1287054245057 is an equidigital number, since it uses as much as digits as its factorization.

1287054245057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591205759.

The product of its (nonzero) digits is 3136000, while the sum is 50.

The spelling of 1287054245057 in words is "one trillion, two hundred eighty-seven billion, fifty-four million, two hundred forty-five thousand, fifty-seven".