1029428633898 has 24 divisors (see below), whose sum is σ = 2549061379488. Its totient is φ = 294122466792.

The previous prime is 1029428633887. The next prime is 1029428633921. The reversal of 1029428633898 is 8983368249201.

1029428633898 is a `hidden beast` number, since 1 + 0 + 294 + 2 + 8 + 6 + 338 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4085034136 + ... + 4085034387.

It is an arithmetic number, because the mean of its divisors is an integer number (106210890812).

Almost surely, 2^{1029428633898} is an apocalyptic number.

1029428633898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1029428633898 is an abundant number, since it is smaller than the sum of its proper divisors (1519632745590).

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

1029428633898 is a wasteful number, since it uses less digits than its factorization.

1029428633898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8170068538 (or 8170068535 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 1029428633898 in words is "one trillion, twenty-nine billion, four hundred twenty-eight million, six hundred thirty-three thousand, eight hundred ninety-eight".