6981091470 has 96 divisors (see below), whose sum is σ = 18607773600. Its totient is φ = 1815340032.

The previous prime is 6981091459. The next prime is 6981091483. The reversal of 6981091470 is 741901896.

It is a happy number.

6981091470 is a `hidden beast` number, since 6 + 98 + 1 + 0 + 91 + 470 = 666.

It is a super-2 number, since 2×6981091470² = 97471276225013521800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 578761 + ... + 590699.

It is an arithmetic number, because the mean of its divisors is an integer number (193830975).

Almost surely, 2^6981091470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6981091470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9303886800).

6981091470 is an abundant number, since it is smaller than the sum of its proper divisors (11626682130).

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

6981091470 is a wasteful number, since it uses less digits than its factorization.

6981091470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12114 (or 12111 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 6981091470 is about 83552.9261606079. The cubic root of 6981091470 is about 1911.2072144887.

The spelling of 6981091470 in words is "six billion, nine hundred eighty-one million, ninety-one thousand, four hundred seventy".