2145515749608 has 64 divisors (see below), whose sum is σ = 6687321822720. Its totient is φ = 557276817600.

The previous prime is 2145515749579. The next prime is 2145515749627. The reversal of 2145515749608 is 8069475155412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580494838 + ... + 580498533.

It is an arithmetic number, because the mean of its divisors is an integer number (104489403480).

Almost surely, 2^{2145515749608} is an apocalyptic number.

2145515749608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2145515749608 is an abundant number, since it is smaller than the sum of its proper divisors (4541806073112).

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

2145515749608 is a wasteful number, since it uses less digits than its factorization.

2145515749608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160993398 (or 1160993394 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 2145515749608 in words is "two trillion, one hundred forty-five billion, five hundred fifteen million, seven hundred forty-nine thousand, six hundred eight".