7040661800 has 48 divisors (see below), whose sum is σ = 16452724860. Its totient is φ = 2801953280.

The previous prime is 7040661787. The next prime is 7040661811. The reversal of 7040661800 is 81660407.

It can be written as a sum of positive squares in 6 ways, for example, as 6230576356 + 810085444 = 78934^2 + 28462^2 .

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, 49949 + ... + 128748.

Almost surely, 2^7040661800 is an apocalyptic number.

It is an amenable number.

7040661800 is an abundant number, since it is smaller than the sum of its proper divisors (9412063060).

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

7040661800 is a wasteful number, since it uses less digits than its factorization.

7040661800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178910 (or 178901 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7040661800 is about 83908.6515205673. The cubic root of 7040661800 is about 1916.6279970354.

The spelling of 7040661800 in words is "seven billion, forty million, six hundred sixty-one thousand, eight hundred".