19206506700 has 144 divisors (see below), whose sum is σ = 61934785920. Its totient is φ = 5106024000.

The previous prime is 19206506699. The next prime is 19206506779. The reversal of 19206506700 is 760560291.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 882955 + ... + 904445.

It is an arithmetic number, because the mean of its divisors is an integer number (430102680).

Almost surely, 2^19206506700 is an apocalyptic number.

19206506700 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 19206506700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30967392960).

19206506700 is an abundant number, since it is smaller than the sum of its proper divisors (42728279220).

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

19206506700 is a wasteful number, since it uses less digits than its factorization.

19206506700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21845 (or 21832 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 19206506700 in words is "nineteen billion, two hundred six million, five hundred six thousand, seven hundred".