5142343778 has 32 divisors (see below), whose sum is σ = 9081192960. Its totient is φ = 2153064960.

The previous prime is 5142343777. The next prime is 5142343799. The reversal of 5142343778 is 8773432415.

It is a super-2 number, since 2×5142343778² = 52887399062270626568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5142343777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118226 + ... + 155762.

It is an arithmetic number, because the mean of its divisors is an integer number (283787280).

Almost surely, 2^5142343778 is an apocalyptic number.

5142343778 is a deficient number, since it is larger than the sum of its proper divisors (3938849182).

5142343778 is a wasteful number, since it uses less digits than its factorization.

5142343778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38042.

The product of its digits is 564480, while the sum is 44.

The square root of 5142343778 is about 71710.1372052794. The cubic root of 5142343778 is about 1726.0513121481.

The spelling of 5142343778 in words is "five billion, one hundred forty-two million, three hundred forty-three thousand, seven hundred seventy-eight".