1028191418254 has 128 divisors (see below), whose sum is σ = 2083825336320. Its totient is φ = 367454102400.

The previous prime is 1028191418251. The next prime is 1028191418339. The reversal of 1028191418254 is 4528141918201.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 227322837 + ... + 227327359.

It is an arithmetic number, because the mean of its divisors is an integer number (16279885440).

Almost surely, 2^{1028191418254} is an apocalyptic number.

1028191418254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1028191418254 is an abundant number, since it is smaller than the sum of its proper divisors (1055633918066).

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

1028191418254 is a wasteful number, since it uses less digits than its factorization.

1028191418254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246.

The product of its (nonzero) digits is 184320, while the sum is 46.

The spelling of 1028191418254 in words is "one trillion, twenty-eight billion, one hundred ninety-one million, four hundred eighteen thousand, two hundred fifty-four".