20131476750 has 320 divisors, whose sum is σ = 70193350656. Its totient is φ = 4182840000.

The previous prime is 20131476713. The next prime is 20131476751. The reversal of 20131476750 is 5767413102.

It is a happy number.

20131476750 is a `hidden beast` number, since 2 + 0 + 131 + 476 + 7 + 50 = 666.

It is a super-2 number, since 2×20131476750² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131476751) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1552795 + ... + 1565705.

Almost surely, 2^20131476750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20131476750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35096675328).

20131476750 is an abundant number, since it is smaller than the sum of its proper divisors (50061873906).

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

20131476750 is a wasteful number, since it uses less digits than its factorization.

20131476750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12958 (or 12939 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

Adding to 20131476750 its reverse (5767413102), we get a palindrome (25898889852).

The spelling of 20131476750 in words is "twenty billion, one hundred thirty-one million, four hundred seventy-six thousand, seven hundred fifty".