2489780009378 has 16 divisors (see below), whose sum is σ = 3866114482560. Its totient is φ = 1201134354000.

The previous prime is 2489780009371. The next prime is 2489780009389. The reversal of 2489780009378 is 8739000879842.

It is not an unprimeable number, because it can be changed into a prime (2489780009371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14708138 + ... + 14876453.

It is an arithmetic number, because the mean of its divisors is an integer number (241632155160).

Almost surely, 2^{2489780009378} is an apocalyptic number.

2489780009378 is a deficient number, since it is larger than the sum of its proper divisors (1376334473182).

2489780009378 is a wasteful number, since it uses less digits than its factorization.

2489780009378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29586073.

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 2489780009378 in words is "two trillion, four hundred eighty-nine billion, seven hundred eighty million, nine thousand, three hundred seventy-eight".