42520673600 has 84 divisors (see below), whose sum is σ = 107179486428. Its totient is φ = 16593408000.

The previous prime is 42520673593. The next prime is 42520673621. The reversal of 42520673600 is 637602524.

It can be written as a sum of positive squares in 6 ways, for example, as 2000593984 + 40520079616 = 44728^2 + 201296^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258491 + ... + 389690.

It is an arithmetic number, because the mean of its divisors is an integer number (1275946267).

Almost surely, 2^42520673600 is an apocalyptic number.

42520673600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42520673600 is an abundant number, since it is smaller than the sum of its proper divisors (64658812828).

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

42520673600 is a wasteful number, since it uses less digits than its factorization.

42520673600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648244 (or 648229 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 42520673600 in words is "forty-two billion, five hundred twenty million, six hundred seventy-three thousand, six hundred".