6215456042 has 16 divisors (see below), whose sum is σ = 9781707264. Its totient is φ = 2958174000.

The previous prime is 6215456021. The next prime is 6215456047. The reversal of 6215456042 is 2406545126.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6215455993 and 6215456011.

It is not an unprimeable number, because it can be changed into a prime (6215456047) 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, 817934 + ... + 825497.

It is an arithmetic number, because the mean of its divisors is an integer number (611356704).

Almost surely, 2^6215456042 is an apocalyptic number.

6215456042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6215456042 is a deficient number, since it is larger than the sum of its proper divisors (3566251222).

6215456042 is a wasteful number, since it uses less digits than its factorization.

6215456042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643525.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 6215456042 is about 78838.1636138235. The cubic root of 6215456042 is about 1838.6158503710.

The spelling of 6215456042 in words is "six billion, two hundred fifteen million, four hundred fifty-six thousand, forty-two".