642701497233 has 16 divisors (see below), whose sum is σ = 859792481856. Its totient is φ = 427039303680.

The previous prime is 642701497219. The next prime is 642701497237. The reversal of 642701497233 is 332794107246.

It is not a de Polignac number, because 642701497233 - 2¹⁷ = 642701366161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642701497237) 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, 20910685 + ... + 20941397.

It is an arithmetic number, because the mean of its divisors is an integer number (53737030116).

Almost surely, 2^642701497233 is an apocalyptic number.

It is an amenable number.

642701497233 is a deficient number, since it is larger than the sum of its proper divisors (217090984623).

642701497233 is a wasteful number, since it uses less digits than its factorization.

642701497233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53744.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 642701497233 in words is "six hundred forty-two billion, seven hundred one million, four hundred ninety-seven thousand, two hundred thirty-three".