642747070011 has 8 divisors (see below), whose sum is σ = 857003818320. Its totient is φ = 428494184192.

The previous prime is 642747069989. The next prime is 642747070057. The reversal of 642747070011 is 110070747246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642747070011 - 2¹⁸ = 642746807867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642747070411) 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, 552030 + ... + 1261043.

It is an arithmetic number, because the mean of its divisors is an integer number (107125477290).

Almost surely, 2^642747070011 is an apocalyptic number.

642747070011 is a deficient number, since it is larger than the sum of its proper divisors (214256748309).

642747070011 is a wasteful number, since it uses less digits than its factorization.

642747070011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931245.

The product of its (nonzero) digits is 65856, while the sum is 39.

The spelling of 642747070011 in words is "six hundred forty-two billion, seven hundred forty-seven million, seventy thousand, eleven".