6985574420 has 54 divisors (see below), whose sum is σ = 16134049386. Its totient is φ = 2538713760.

The previous prime is 6985574399. The next prime is 6985574437. The reversal of 6985574420 is 244755896.

It can be written as a sum of positive squares in only one way, i.e., 5588459536 + 1397114884 = 74756^2 + 37378^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4110731 + ... + 4112429.

Almost surely, 2^6985574420 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 6985574420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8067024693).

6985574420 is an abundant number, since it is smaller than the sum of its proper divisors (9148474966).

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

6985574420 is a wasteful number, since it uses less digits than its factorization.

6985574420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The square root of 6985574420 is about 83579.7488629871. The cubic root of 6985574420 is about 1911.6162246990.

The spelling of 6985574420 in words is "six billion, nine hundred eighty-five million, five hundred seventy-four thousand, four hundred twenty".