6938558480 has 80 divisors (see below), whose sum is σ = 18554407680. Its totient is φ = 2363751936.

The previous prime is 6938558479. The next prime is 6938558489. The reversal of 6938558480 is 848558396.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (6938558489) 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, 48461 + ... + 127379.

It is an arithmetic number, because the mean of its divisors is an integer number (231930096).

Almost surely, 2^6938558480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6938558480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9277203840).

6938558480 is an abundant number, since it is smaller than the sum of its proper divisors (11615849200).

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

6938558480 is a wasteful number, since it uses less digits than its factorization.

6938558480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79096 (or 79090 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 56.

The square root of 6938558480 is about 83298.0100602649. The cubic root of 6938558480 is about 1907.3178987768.

The spelling of 6938558480 in words is "six billion, nine hundred thirty-eight million, five hundred fifty-eight thousand, four hundred eighty".