10819961570 has 24 divisors (see below), whose sum is σ = 21407430492. Its totient is φ = 3934531040.

The previous prime is 10819961557. The next prime is 10819961573. The reversal of 10819961570 is 7516991801.

It can be written as a sum of positive squares in 2 ways, for example, as 10061895481 + 758066089 = 100309^2 + 27533^2 .

It is not an unprimeable number, because it can be changed into a prime (10819961573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4469849 + ... + 4472268.

Almost surely, 2^10819961570 is an apocalyptic number.

10819961570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10819961570 is a deficient number, since it is larger than the sum of its proper divisors (10587468922).

10819961570 is a wasteful number, since it uses less digits than its factorization.

10819961570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8942146 (or 8942135 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 47.

The spelling of 10819961570 in words is "ten billion, eight hundred nineteen million, nine hundred sixty-one thousand, five hundred seventy".