18393071070 has 128 divisors (see below), whose sum is σ = 50155200000. Its totient is φ = 4275944960.

The previous prime is 18393071057. The next prime is 18393071117. The reversal of 18393071070 is 7017039381.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1419481 + ... + 1432379.

It is an arithmetic number, because the mean of its divisors is an integer number (391837500).

Almost surely, 2^18393071070 is an apocalyptic number.

18393071070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18393071070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25077600000).

18393071070 is an abundant number, since it is smaller than the sum of its proper divisors (31762128930).

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

18393071070 is a wasteful number, since it uses less digits than its factorization.

18393071070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098.

The product of its (nonzero) digits is 31752, while the sum is 39.

The spelling of 18393071070 in words is "eighteen billion, three hundred ninety-three million, seventy-one thousand, seventy".