1428811507754 has 4 divisors (see below), whose sum is σ = 2143217261634. Its totient is φ = 714405753876.

The previous prime is 1428811507679. The next prime is 1428811507777. The reversal of 1428811507754 is 4577051188241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1193851243225 + 234960264529 = 1092635^2 + 484727^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1428811507696 and 1428811507705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357202876937 + ... + 357202876940.

Almost surely, 2^{1428811507754} is an apocalyptic number.

1428811507754 is a deficient number, since it is larger than the sum of its proper divisors (714405753880).

1428811507754 is an equidigital number, since it uses as much as digits as its factorization.

1428811507754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714405753879.

The product of its (nonzero) digits is 2508800, while the sum is 53.

The spelling of 1428811507754 in words is "one trillion, four hundred twenty-eight billion, eight hundred eleven million, five hundred seven thousand, seven hundred fifty-four".