16938312570 has 48 divisors (see below), whose sum is σ = 45670716000. Its totient is φ = 4516882704.

The previous prime is 16938312557. The next prime is 16938312571. The reversal of 16938312570 is 7521383961.

16938312570 is a `hidden beast` number, since 1 + 69 + 3 + 8 + 3 + 12 + 570 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (16938312571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3482820 + ... + 3487679.

It is an arithmetic number, because the mean of its divisors is an integer number (951473250).

Almost surely, 2^16938312570 is an apocalyptic number.

16938312570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16938312570 is an abundant number, since it is smaller than the sum of its proper divisors (28732403430).

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

16938312570 is an equidigital number, since it uses as much as digits as its factorization.

16938312570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970521 (or 6970509 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 16938312570 in words is "sixteen billion, nine hundred thirty-eight million, three hundred twelve thousand, five hundred seventy".