2612358378 has 128 divisors (see below), whose sum is σ = 6883591680. Its totient is φ = 727833600.

The previous prime is 2612358373. The next prime is 2612358389. The reversal of 2612358378 is 8738532162.

2612358378 is a `hidden beast` number, since 2 + 61 + 2 + 3 + 583 + 7 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2612358373) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1254298 + ... + 1256378.

It is an arithmetic number, because the mean of its divisors is an integer number (53778060).

Almost surely, 2^2612358378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2612358378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3441795840).

2612358378 is an abundant number, since it is smaller than the sum of its proper divisors (4271233302).

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

2612358378 is an equidigital number, since it uses as much as digits as its factorization.

2612358378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2134 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 2612358378 is about 51111.2353401872. The cubic root of 2612358378 is about 1377.2440935987.

The spelling of 2612358378 in words is "two billion, six hundred twelve million, three hundred fifty-eight thousand, three hundred seventy-eight".