2345777778 has 16 divisors (see below), whose sum is σ = 4698353376. Its totient is φ = 780792960.

The previous prime is 2345777771. The next prime is 2345777807. The reversal of 2345777778 is 8777775432.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2345777771) 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 7 ways as a sum of consecutive naturals, for example, 278751 + ... + 287042.

It is an arithmetic number, because the mean of its divisors is an integer number (293647086).

Almost surely, 2^2345777778 is an apocalyptic number.

2345777778 is an abundant number, since it is smaller than the sum of its proper divisors (2352575598).

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

2345777778 is a wasteful number, since it uses less digits than its factorization.

2345777778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566489.

The product of its digits is 16134720, while the sum is 57.

The square root of 2345777778 is about 48433.2301008306. The cubic root of 2345777778 is about 1328.7061829489.

The spelling of 2345777778 in words is "two billion, three hundred forty-five million, seven hundred seventy-seven thousand, seven hundred seventy-eight".