2562646042 has 16 divisors (see below), whose sum is σ = 4295700864. Its totient is φ = 1136428000.

The previous prime is 2562646019. The next prime is 2562646043. The reversal of 2562646042 is 2406462652.

It is a junction number, because it is equal to n+sod(n) for n = 2562645992 and 2562646010.

It is not an unprimeable number, because it can be changed into a prime (2562646043) 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, 1419634 + ... + 1421437.

It is an arithmetic number, because the mean of its divisors is an integer number (268481304).

Almost surely, 2^2562646042 is an apocalyptic number.

2562646042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2562646042 is a deficient number, since it is larger than the sum of its proper divisors (1733054822).

2562646042 is a wasteful number, since it uses less digits than its factorization.

2562646042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841125.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2562646042 is about 50622.5843077969. The cubic root of 2562646042 is about 1368.4519146491.

The spelling of 2562646042 in words is "two billion, five hundred sixty-two million, six hundred forty-six thousand, forty-two".