7121065860 has 96 divisors (see below), whose sum is σ = 23320483200. Its totient is φ = 1799003520.

The previous prime is 7121065837. The next prime is 7121065867. The reversal of 7121065860 is 685601217.

7121065860 is a `hidden beast` number, since 71 + 2 + 1 + 0 + 6 + 586 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7121065867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336771 + ... + 357290.

It is an arithmetic number, because the mean of its divisors is an integer number (242921700).

Almost surely, 2^7121065860 is an apocalyptic number.

It is an amenable number.

7121065860 is an abundant number, since it is smaller than the sum of its proper divisors (16199417340).

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

7121065860 is a wasteful number, since it uses less digits than its factorization.

7121065860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694098 (or 694090 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 7121065860 is about 84386.4080287815. The cubic root of 7121065860 is about 1923.8963357024.

The spelling of 7121065860 in words is "seven billion, one hundred twenty-one million, sixty-five thousand, eight hundred sixty".