7057531780 has 24 divisors (see below), whose sum is σ = 15960880152. Its totient is φ = 2605857792.

The previous prime is 7057531769. The next prime is 7057531801. The reversal of 7057531780 is 871357507.

It can be written as a sum of positive squares in 4 ways, for example, as 1258404676 + 5799127104 = 35474^2 + 76152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13571917 + ... + 13572436.

It is an arithmetic number, because the mean of its divisors is an integer number (665036673).

Almost surely, 2^7057531780 is an apocalyptic number.

It is an amenable number.

7057531780 is an abundant number, since it is smaller than the sum of its proper divisors (8903348372).

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

7057531780 is a wasteful number, since it uses less digits than its factorization.

7057531780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27144375 (or 27144373 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 43.

The square root of 7057531780 is about 84009.1172433088. The cubic root of 7057531780 is about 1918.1575732173.

The spelling of 7057531780 in words is "seven billion, fifty-seven million, five hundred thirty-one thousand, seven hundred eighty".