6985477824 has 56 divisors (see below), whose sum is σ = 19904141040. Its totient is φ = 2149377024.

The previous prime is 6985477823. The next prime is 6985477879. The reversal of 6985477824 is 4287745896.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6985477823) 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, 1396839 + ... + 1401830.

It is an arithmetic number, because the mean of its divisors is an integer number (355431090).

Almost surely, 2^6985477824 is an apocalyptic number.

6985477824 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6985477824 is an abundant number, since it is smaller than the sum of its proper divisors (12918663216).

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

6985477824 is a wasteful number, since it uses less digits than its factorization.

6985477824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798697 (or 2798687 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The square root of 6985477824 is about 83579.1709937350. The cubic root of 6985477824 is about 1911.6074134298.

The spelling of 6985477824 in words is "six billion, nine hundred eighty-five million, four hundred seventy-seven thousand, eight hundred twenty-four".