6984772228531 has 4 divisors (see below), whose sum is σ = 6984799471552. Its totient is φ = 6984744985512.

The previous prime is 6984772228519. The next prime is 6984772228547. The reversal of 6984772228531 is 1358222774896.

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 6984772228531 - 2³¹ = 6982624744883 is a prime.

It is a super-2 number, since 2×6984772228531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6984772228501) 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, 13233240 + ... + 13750933.

It is an arithmetic number, because the mean of its divisors is an integer number (1746199867888).

Almost surely, 2^{6984772228531} is an apocalyptic number.

6984772228531 is a deficient number, since it is larger than the sum of its proper divisors (27243021).

6984772228531 is a wasteful number, since it uses less digits than its factorization.

6984772228531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27243020.

The product of its digits is 81285120, while the sum is 64.

The spelling of 6984772228531 in words is "six trillion, nine hundred eighty-four billion, seven hundred seventy-two million, two hundred twenty-eight thousand, five hundred thirty-one".