642341031552 has 320 divisors, whose sum is σ = 2120745607200. Its totient is φ = 191347660800.

The previous prime is 642341031511. The next prime is 642341031601. The reversal of 642341031552 is 255130143246.

642341031552 is a `hidden beast` number, since 6 + 42 + 34 + 1 + 0 + 31 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6681102 + ... + 6776562.

Almost surely, 2^642341031552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 642341031552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1060372803600).

642341031552 is an abundant number, since it is smaller than the sum of its proper divisors (1478404575648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642341031552 is a wasteful number, since it uses less digits than its factorization.

642341031552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95557 (or 95536 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 642341031552 its reverse (255130143246), we get a palindrome (897471174798).

The spelling of 642341031552 in words is "six hundred forty-two billion, three hundred forty-one million, thirty-one thousand, five hundred fifty-two".