2518648380 has 72 divisors (see below), whose sum is σ = 7725790800. Its totient is φ = 664088832.

The previous prime is 2518648367. The next prime is 2518648381. The reversal of 2518648380 is 838468152.

2518648380 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2518648381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62590 + ... + 94629.

It is an arithmetic number, because the mean of its divisors is an integer number (107302650).

Almost surely, 2^2518648380 is an apocalyptic number.

2518648380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2518648380 is an abundant number, since it is smaller than the sum of its proper divisors (5207142420).

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

2518648380 is a wasteful number, since it uses less digits than its factorization.

2518648380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157323 (or 157318 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 2518648380 is about 50186.1373289477. The cubic root of 2518648380 is about 1360.5750847863.

The spelling of 2518648380 in words is "two billion, five hundred eighteen million, six hundred forty-eight thousand, three hundred eighty".