42550312464 has 120 divisors (see below), whose sum is σ = 130059113184. Its totient is φ = 12878976000.

The previous prime is 42550312457. The next prime is 42550312481. The reversal of 42550312464 is 46421305524.

42550312464 is a `hidden beast` number, since 4 + 25 + 503 + 124 + 6 + 4 = 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 23 ways as a sum of consecutive naturals, for example, 1380259 + ... + 1410749.

Almost surely, 2^42550312464 is an apocalyptic number.

42550312464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42550312464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65029556592).

42550312464 is an abundant number, since it is smaller than the sum of its proper divisors (87508800720).

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

42550312464 is a wasteful number, since it uses less digits than its factorization.

42550312464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31397 (or 31388 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 42550312464 its reverse (46421305524), we get a palindrome (88971617988).

The spelling of 42550312464 in words is "forty-two billion, five hundred fifty million, three hundred twelve thousand, four hundred sixty-four".