1029428633899 has 4 divisors (see below), whose sum is σ = 1029530055600. Its totient is φ = 1029327212200.

The previous prime is 1029428633887. The next prime is 1029428633921. The reversal of 1029428633899 is 9983368249201.

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

It is a cyclic number.

It is not a de Polignac number, because 1029428633899 - 2¹³ = 1029428625707 is a prime.

It is a super-2 number, since 2×1029428633899² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1029428633899.

It is not an unprimeable number, because it can be changed into a prime (1029428633869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50695624 + ... + 50715925.

It is an arithmetic number, because the mean of its divisors is an integer number (257382513900).

Almost surely, 2^{1029428633899} is an apocalyptic number.

1029428633899 is a deficient number, since it is larger than the sum of its proper divisors (101421701).

1029428633899 is a wasteful number, since it uses less digits than its factorization.

1029428633899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101421700.

The product of its (nonzero) digits is 40310784, while the sum is 64.

The spelling of 1029428633899 in words is "one trillion, twenty-nine billion, four hundred twenty-eight million, six hundred thirty-three thousand, eight hundred ninety-nine".