2345577778 has 32 divisors (see below), whose sum is σ = 3821207040. Its totient is φ = 1076042880.

The previous prime is 2345577763. The next prime is 2345577779. The reversal of 2345577778 is 8777755432.

It is a super-2 number, since 2×2345577778² = 11003470225294834568, which contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2345577779) 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 15 ways as a sum of consecutive naturals, for example, 309798 + ... + 317278.

It is an arithmetic number, because the mean of its divisors is an integer number (119412720).

Almost surely, 2^2345577778 is an apocalyptic number.

2345577778 is a deficient number, since it is larger than the sum of its proper divisors (1475629262).

2345577778 is a wasteful number, since it uses less digits than its factorization.

2345577778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762.

The product of its digits is 11524800, while the sum is 55.

The square root of 2345577778 is about 48431.1653586820. The cubic root of 2345577778 is about 1328.6684202373.

The spelling of 2345577778 in words is "two billion, three hundred forty-five million, five hundred seventy-seven thousand, seven hundred seventy-eight".