6840020524 has 24 divisors (see below), whose sum is σ = 12185466608. Its totient is φ = 3358635840.

The previous prime is 6840020521. The next prime is 6840020527. The reversal of 6840020524 is 4250200486.

It is an interprime number because it is at equal distance from previous prime (6840020521) and next prime (6840020527).

It is not an unprimeable number, because it can be changed into a prime (6840020521) 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, 135094 + ... + 178690.

Almost surely, 2^6840020524 is an apocalyptic number.

It is an amenable number.

6840020524 is a deficient number, since it is larger than the sum of its proper divisors (5345446084).

6840020524 is a wasteful number, since it uses less digits than its factorization.

6840020524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44305 (or 44303 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 6840020524 is about 82704.4165930696. The cubic root of 6840020524 is about 1898.2458902180.

The spelling of 6840020524 in words is "six billion, eight hundred forty million, twenty thousand, five hundred twenty-four".