7061043640 has 32 divisors (see below), whose sum is σ = 18156970080. Its totient is φ = 2420929152.

The previous prime is 7061043607. The next prime is 7061043643. The reversal of 7061043640 is 463401607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7061043643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12608727 + ... + 12609286.

It is an arithmetic number, because the mean of its divisors is an integer number (567405315).

Almost surely, 2^7061043640 is an apocalyptic number.

7061043640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7061043640 is an abundant number, since it is smaller than the sum of its proper divisors (11095926440).

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

7061043640 is a wasteful number, since it uses less digits than its factorization.

7061043640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25218031 (or 25218027 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 7061043640 is about 84030.0163036995. The cubic root of 7061043640 is about 1918.4756817778.

The spelling of 7061043640 in words is "seven billion, sixty-one million, forty-three thousand, six hundred forty".