39364648381 has 4 divisors (see below), whose sum is σ = 41436472000. Its totient is φ = 37292824764.

The previous prime is 39364648361. The next prime is 39364648397. The reversal of 39364648381 is 18384646393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39364648381 - 2⁹ = 39364647869 is a prime.

It is a super-2 number, since 2×39364648381² (a number of 22 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 (39364648321) 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, 1035911781 + ... + 1035911818.

It is an arithmetic number, because the mean of its divisors is an integer number (10359118000).

Almost surely, 2^39364648381 is an apocalyptic number.

It is an amenable number.

39364648381 is a deficient number, since it is larger than the sum of its proper divisors (2071823619).

39364648381 is a wasteful number, since it uses less digits than its factorization.

39364648381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071823618.

The product of its digits is 8957952, while the sum is 55.

The spelling of 39364648381 in words is "thirty-nine billion, three hundred sixty-four million, six hundred forty-eight thousand, three hundred eighty-one".