642045331151 has 48 divisors (see below), whose sum is σ = 753266562048. Its totient is φ = 536012121600.

The previous prime is 642045331087. The next prime is 642045331159. The reversal of 642045331151 is 151133540246.

It is not a de Polignac number, because 642045331151 - 2⁶ = 642045331087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642045331159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2064454286 + ... + 2064454596.

It is an arithmetic number, because the mean of its divisors is an integer number (15693053376).

Almost surely, 2^642045331151 is an apocalyptic number.

642045331151 is a deficient number, since it is larger than the sum of its proper divisors (111221230897).

642045331151 is a wasteful number, since it uses less digits than its factorization.

642045331151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 642045331151 its reverse (151133540246), we get a palindrome (793178871397).

The spelling of 642045331151 in words is "six hundred forty-two billion, forty-five million, three hundred thirty-one thousand, one hundred fifty-one".