6980445378 has 80 divisors (see below), whose sum is σ = 17433234720. Its totient is φ = 2074667904.

The previous prime is 6980445343. The next prime is 6980445383. The reversal of 6980445378 is 8735440896.

6980445378 is a `hidden beast` number, since 69 + 8 + 0 + 44 + 537 + 8 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14376 + ... + 119027.

It is an arithmetic number, because the mean of its divisors is an integer number (217915434).

Almost surely, 2^6980445378 is an apocalyptic number.

6980445378 is an abundant number, since it is smaller than the sum of its proper divisors (10452789342).

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

6980445378 is a wasteful number, since it uses less digits than its factorization.

6980445378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133453 (or 133444 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 6980445378 is about 83549.0597074557. The cubic root of 6980445378 is about 1911.1482526586.

The spelling of 6980445378 in words is "six billion, nine hundred eighty million, four hundred forty-five thousand, three hundred seventy-eight".