7384636986913 has 8 divisors (see below), whose sum is σ = 7406305108776. Its totient is φ = 7362973094400.

The previous prime is 7384636986907. The next prime is 7384636986977. The reversal of 7384636986913 is 3196896364837.

It can be written as a sum of positive squares in 4 ways, for example, as 97838835264 + 7286798151649 = 312792^2 + 2699407^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7384636986913 is a prime.

It is a super-2 number, since 2×7384636986913² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7384636986113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456983 + ... + 4561363.

It is an arithmetic number, because the mean of its divisors is an integer number (925788138597).

Almost surely, 2^{7384636986913} is an apocalyptic number.

It is an amenable number.

7384636986913 is a deficient number, since it is larger than the sum of its proper divisors (21668121863).

7384636986913 is a wasteful number, since it uses less digits than its factorization.

7384636986913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114675.

The product of its digits is 846526464, while the sum is 73.

The spelling of 7384636986913 in words is "seven trillion, three hundred eighty-four billion, six hundred thirty-six million, nine hundred eighty-six thousand, nine hundred thirteen".