1028191418256 has 40 divisors (see below), whose sum is σ = 2657029286464. Its totient is φ = 342618456960.

The previous prime is 1028191418251. The next prime is 1028191418339. The reversal of 1028191418256 is 6528141918201.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1028191418251) 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, 3352036 + ... + 3645891.

Almost surely, 2^{1028191418256} is an apocalyptic number.

1028191418256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1028191418256 is an abundant number, since it is smaller than the sum of its proper divisors (1628837868208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028191418256 is a wasteful number, since it uses less digits than its factorization.

1028191418256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000999 (or 7000993 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 48.

The spelling of 1028191418256 in words is "one trillion, twenty-eight billion, one hundred ninety-one million, four hundred eighteen thousand, two hundred fifty-six".