20381377250 has 32 divisors (see below), whose sum is σ = 41088863088. Its totient is φ = 7525430400.

The previous prime is 20381377223. The next prime is 20381377267. The reversal of 20381377250 is 5277318302.

It can be written as a sum of positive squares in 8 ways, for example, as 52606009 + 20328771241 = 7253^2 + 142579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3132347 + ... + 3138846.

Almost surely, 2^20381377250 is an apocalyptic number.

20381377250 is an abundant number, since it is smaller than the sum of its proper divisors (20707485838).

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

20381377250 is a wasteful number, since it uses less digits than its factorization.

20381377250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271223 (or 6271213 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 20381377250 in words is "twenty billion, three hundred eighty-one million, three hundred seventy-seven thousand, two hundred fifty".