2451516380 has 12 divisors (see below), whose sum is σ = 5148184440. Its totient is φ = 980606544.

The previous prime is 2451516377. The next prime is 2451516383. The reversal of 2451516380 is 836151542.

It is an interprime number because it is at equal distance from previous prime (2451516377) and next prime (2451516383).

It is a super-2 number, since 2×2451516380² = 12019865122816608800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2451516380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451516383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61287890 + ... + 61287929.

It is an arithmetic number, because the mean of its divisors is an integer number (429015370).

Almost surely, 2^2451516380 is an apocalyptic number.

2451516380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451516380 is an abundant number, since it is smaller than the sum of its proper divisors (2696668060).

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

2451516380 is a wasteful number, since it uses less digits than its factorization.

2451516380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122575828 (or 122575826 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 2451516380 is about 49512.7900647903. The cubic root of 2451516380 is about 1348.3778192618.

The spelling of 2451516380 in words is "two billion, four hundred fifty-one million, five hundred sixteen thousand, three hundred eighty".