642701231073 has 32 divisors (see below), whose sum is σ = 1099809601920. Its totient is φ = 366603194880.

The previous prime is 642701231071. The next prime is 642701231131. The reversal of 642701231073 is 370132107246.

642701231073 is a `hidden beast` number, since 6 + 4 + 270 + 1 + 2 + 310 + 73 = 666.

It is not a de Polignac number, because 642701231073 - 2¹ = 642701231071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642701231071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63641340 + ... + 63651437.

It is an arithmetic number, because the mean of its divisors is an integer number (34369050060).

Almost surely, 2^642701231073 is an apocalyptic number.

It is an amenable number.

642701231073 is a deficient number, since it is larger than the sum of its proper divisors (457108370847).

642701231073 is a wasteful number, since it uses less digits than its factorization.

642701231073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127292814 (or 127292808 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 642701231073 in words is "six hundred forty-two billion, seven hundred one million, two hundred thirty-one thousand, seventy-three".