20000987270 has 16 divisors (see below), whose sum is σ = 39274666128. Its totient is φ = 7273086240.

The previous prime is 20000987267. The next prime is 20000987273. The reversal of 20000987270 is 7278900002.

It is an interprime number because it is at equal distance from previous prime (20000987267) and next prime (20000987273).

It is a self number, because there is not a number n which added to its sum of digits gives 20000987270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000987273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90913469 + ... + 90913688.

It is an arithmetic number, because the mean of its divisors is an integer number (2454666633).

Almost surely, 2^20000987270 is an apocalyptic number.

20000987270 is a deficient number, since it is larger than the sum of its proper divisors (19273678858).

20000987270 is a wasteful number, since it uses less digits than its factorization.

20000987270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181827175.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 20000987270 in words is "twenty billion, nine hundred eighty-seven thousand, two hundred seventy".