1111429539840 has 192 divisors, whose sum is σ = 3567870633600. Its totient is φ = 295367278592.

The previous prime is 1111429539809. The next prime is 1111429539853. The reversal of 1111429539840 is 489359241111.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1111429539840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8939221 + ... + 9062699.

It is an arithmetic number, because the mean of its divisors is an integer number (18582659550).

Almost surely, 2^{1111429539840} is an apocalyptic number.

1111429539840 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 1111429539840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783935316800).

1111429539840 is an abundant number, since it is smaller than the sum of its proper divisors (2456441093760).

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

1111429539840 is a wasteful number, since it uses less digits than its factorization.

1111429539840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123802 (or 123782 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 1111429539840 in words is "one trillion, one hundred eleven billion, four hundred twenty-nine million, five hundred thirty-nine thousand, eight hundred forty".