642771360001 has 16 divisors (see below), whose sum is σ = 692536608000. Its totient is φ = 594657358848.

The previous prime is 642771359947. The next prime is 642771360013. The reversal of 642771360001 is 100063177246.

It is a cyclic number.

It is not a de Polignac number, because 642771360001 - 2¹¹ = 642771357953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642771310001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400590 + ... + 1202503.

It is an arithmetic number, because the mean of its divisors is an integer number (43283538000).

Almost surely, 2^642771360001 is an apocalyptic number.

It is an amenable number.

642771360001 is a deficient number, since it is larger than the sum of its proper divisors (49765247999).

642771360001 is a wasteful number, since it uses less digits than its factorization.

642771360001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603608.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 642771360001 in words is "six hundred forty-two billion, seven hundred seventy-one million, three hundred sixty thousand, one".