2151289480 has 64 divisors (see below), whose sum is σ = 5170670640. Its totient is φ = 802701312.

The previous prime is 2151289477. The next prime is 2151289489. The reversal of 2151289480 is 849821512.

It can be written as a sum of positive squares in 8 ways, for example, as 1113289956 + 1037999524 = 33366^2 + 32218^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2151289489) 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, 62842 + ... + 90838.

Almost surely, 2^2151289480 is an apocalyptic number.

2151289480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2151289480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585335320).

2151289480 is an abundant number, since it is smaller than the sum of its proper divisors (3019381160).

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

2151289480 is a wasteful number, since it uses less digits than its factorization.

2151289480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28138 (or 28134 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 2151289480 is about 46381.9952136602. The cubic root of 2151289480 is about 1290.9208576290.

The spelling of 2151289480 in words is "two billion, one hundred fifty-one million, two hundred eighty-nine thousand, four hundred eighty".