19886503070 has 32 divisors (see below), whose sum is σ = 41314435776. Its totient is φ = 6750720000.

The previous prime is 19886503033. The next prime is 19886503079. The reversal of 19886503070 is 7030568891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19886503079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1399331 + ... + 1413470.

It is an arithmetic number, because the mean of its divisors is an integer number (1291076118).

Almost surely, 2^19886503070 is an apocalyptic number.

19886503070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19886503070 is an abundant number, since it is smaller than the sum of its proper divisors (21427932706).

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

19886503070 is a wasteful number, since it uses less digits than its factorization.

19886503070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812916.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 19886503070 in words is "nineteen billion, eight hundred eighty-six million, five hundred three thousand, seventy".