1428555555238 has 32 divisors (see below), whose sum is σ = 2488879692288. Its totient is φ = 602294011200.

The previous prime is 1428555555191. The next prime is 1428555555263. The reversal of 1428555555238 is 8325555558241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118148 + ... + 2026663.

It is an arithmetic number, because the mean of its divisors is an integer number (77777490384).

Almost surely, 2^{1428555555238} is an apocalyptic number.

1428555555238 is a deficient number, since it is larger than the sum of its proper divisors (1060324137050).

1428555555238 is a wasteful number, since it uses less digits than its factorization.

1428555555238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145348.

The product of its digits is 48000000, while the sum is 58.

The spelling of 1428555555238 in words is "one trillion, four hundred twenty-eight billion, five hundred fifty-five million, five hundred fifty-five thousand, two hundred thirty-eight".