1099429387000 has 128 divisors (see below), whose sum is σ = 2967668720640. Its totient is φ = 373424092800.

The previous prime is 1099429386973. The next prime is 1099429387003. The reversal of 1099429387000 is 7839249901.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099429387003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15069 + ... + 1482931.

It is an arithmetic number, because the mean of its divisors is an integer number (23184911880).

Almost surely, 2^{1099429387000} is an apocalyptic number.

1099429387000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099429387000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483834360320).

1099429387000 is an abundant number, since it is smaller than the sum of its proper divisors (1868239333640).

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

1099429387000 is a wasteful number, since it uses less digits than its factorization.

1099429387000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467998 (or 1467984 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 1099429387000 in words is "one trillion, ninety-nine billion, four hundred twenty-nine million, three hundred eighty-seven thousand".