7036981791949 has 8 divisors (see below), whose sum is σ = 7131945494520. Its totient is φ = 6942513984000.

The previous prime is 7036981791943. The next prime is 7036981791989. The reversal of 7036981791949 is 9491971896307.

It can be written as a sum of positive squares in 4 ways, for example, as 5693974302025 + 1343007489924 = 2386205^2 + 1158882^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7036981791949 - 2²⁷ = 7036847574221 is a prime.

It is a super-2 number, since 2×7036981791949² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7036981791943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123945084 + ... + 124001845.

It is an arithmetic number, because the mean of its divisors is an integer number (891493186815).

Almost surely, 2^{7036981791949} is an apocalyptic number.

It is an amenable number.

7036981791949 is a deficient number, since it is larger than the sum of its proper divisors (94963702571).

7036981791949 is a wasteful number, since it uses less digits than its factorization.

7036981791949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247947311.

The product of its (nonzero) digits is 185177664, while the sum is 73.

The spelling of 7036981791949 in words is "seven trillion, thirty-six billion, nine hundred eighty-one million, seven hundred ninety-one thousand, nine hundred forty-nine".