6451040460642 has 32 divisors (see below), whose sum is σ = 13062252863808. Its totient is φ = 2123785982976.

The previous prime is 6451040460617. The next prime is 6451040460661. The reversal of 6451040460642 is 2460640401546.

It is a junction number, because it is equal to n+sod(n) for n = 6451040460594 and 6451040460603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16618743 + ... + 17002490.

It is an arithmetic number, because the mean of its divisors is an integer number (408195401994).

Almost surely, 2^{6451040460642} is an apocalyptic number.

6451040460642 is an abundant number, since it is smaller than the sum of its proper divisors (6611212403166).

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

6451040460642 is a wasteful number, since it uses less digits than its factorization.

6451040460642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33621634.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 6451040460642 in words is "six trillion, four hundred fifty-one billion, forty million, four hundred sixty thousand, six hundred forty-two".