6992532480781 has 4 divisors (see below), whose sum is σ = 6992993714364. Its totient is φ = 6992071247200.

The previous prime is 6992532480779. The next prime is 6992532480841. The reversal of 6992532480781 is 1870842352996.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3512498195556 + 3480034285225 = 1874166^2 + 1865485^2 .

It is a cyclic number.

It is not a de Polignac number, because 6992532480781 - 2¹ = 6992532480779 is a prime.

It is a super-2 number, since 2×6992532480781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6992532480701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230594050 + ... + 230624371.

It is an arithmetic number, because the mean of its divisors is an integer number (1748248428591).

It is a 1-persistent number, because it is pandigital, but 2⋅6992532480781 = 13985064961562 is not.

Almost surely, 2^{6992532480781} is an apocalyptic number.

It is an amenable number.

6992532480781 is a deficient number, since it is larger than the sum of its proper divisors (461233583).

6992532480781 is a wasteful number, since it uses less digits than its factorization.

6992532480781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461233582.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 6992532480781 in words is "six trillion, nine hundred ninety-two billion, five hundred thirty-two million, four hundred eighty thousand, seven hundred eighty-one".