100449069786 has 96 divisors (see below), whose sum is σ = 241911360000. Its totient is φ = 30881889792.

The previous prime is 100449069781. The next prime is 100449069811. The reversal of 100449069786 is 687960944001.

100449069786 is a `hidden beast` number, since 10 + 0 + 4 + 490 + 69 + 7 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100449069781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13128490 + ... + 13136138.

It is an arithmetic number, because the mean of its divisors is an integer number (2519910000).

Almost surely, 2^100449069786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100449069786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120955680000).

100449069786 is an abundant number, since it is smaller than the sum of its proper divisors (141462290214).

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

100449069786 is a wasteful number, since it uses less digits than its factorization.

100449069786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125 (or 9106 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 100449069786 in words is "one hundred billion, four hundred forty-nine million, sixty-nine thousand, seven hundred eighty-six".