6981954235 has 4 divisors (see below), whose sum is σ = 8378345088. Its totient is φ = 5585563384.

The previous prime is 6981954233. The next prime is 6981954253. The reversal of 6981954235 is 5324591896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6981954235 - 2¹ = 6981954233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6981954233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698195419 + ... + 698195428.

It is an arithmetic number, because the mean of its divisors is an integer number (2094586272).

Almost surely, 2^6981954235 is an apocalyptic number.

6981954235 is a deficient number, since it is larger than the sum of its proper divisors (1396390853).

6981954235 is a wasteful number, since it uses less digits than its factorization.

6981954235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396390852.

The product of its digits is 2332800, while the sum is 52.

The square root of 6981954235 is about 83558.0889860461. The cubic root of 6981954235 is about 1911.2859440482.

The spelling of 6981954235 in words is "six billion, nine hundred eighty-one million, nine hundred fifty-four thousand, two hundred thirty-five".