6939636120 has 80 divisors (see below), whose sum is σ = 23324898960. Its totient is φ = 1850568768.

The previous prime is 6939636091. The next prime is 6939636127. The reversal of 6939636120 is 216369396.

It is a happy number.

6939636120 is a `hidden beast` number, since 6 + 9 + 3 + 9 + 636 + 1 + 2 + 0 = 666.

It is a super-3 number, since 3×6939636120³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939636127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1067692 + ... + 1074171.

It is an arithmetic number, because the mean of its divisors is an integer number (291561237).

Almost surely, 2^6939636120 is an apocalyptic number.

6939636120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6939636120 is an abundant number, since it is smaller than the sum of its proper divisors (16385262840).

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

6939636120 is a wasteful number, since it uses less digits than its factorization.

6939636120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141886 (or 2141873 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 6939636120 is about 83304.4783910205. The cubic root of 6939636120 is about 1907.4166366566.

The spelling of 6939636120 in words is "six billion, nine hundred thirty-nine million, six hundred thirty-six thousand, one hundred twenty".