537807780 has 36 divisors (see below), whose sum is σ = 1631350812. Its totient is φ = 143415360.

The previous prime is 537807773. The next prime is 537807797. The reversal of 537807780 is 87708735.

It can be written as a sum of positive squares in 2 ways, for example, as 72284004 + 465523776 = 8502^2 + 21576^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1493731 + ... + 1494090.

Almost surely, 2^537807780 is an apocalyptic number.

It is an amenable number.

537807780 is an abundant number, since it is smaller than the sum of its proper divisors (1093543032).

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

537807780 is a wasteful number, since it uses less digits than its factorization.

537807780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987836 (or 2987831 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 537807780 is about 23190.6830429809. The cubic root of 537807780 is about 813.2218273335.

The spelling of 537807780 in words is "five hundred thirty-seven million, eight hundred seven thousand, seven hundred eighty".