6977149218 has 32 divisors (see below), whose sum is σ = 16697452800. Its totient is φ = 2146814928.

The previous prime is 6977149217. The next prime is 6977149247. The reversal of 6977149218 is 8129417796.

It is a super-2 number, since 2×6977149218² = 97361222420476023048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6977149213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4968778 + ... + 4970181.

It is an arithmetic number, because the mean of its divisors is an integer number (521795400).

Almost surely, 2^6977149218 is an apocalyptic number.

6977149218 is an abundant number, since it is smaller than the sum of its proper divisors (9720303582).

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

6977149218 is a wasteful number, since it uses less digits than its factorization.

6977149218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938983 (or 9938977 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 6977149218 is about 83529.3314830186. The cubic root of 6977149218 is about 1910.8473911388.

The spelling of 6977149218 in words is "six billion, nine hundred seventy-seven million, one hundred forty-nine thousand, two hundred eighteen".