104387649937 has 4 divisors (see below), whose sum is σ = 104392500516. Its totient is φ = 104382799360.

The previous prime is 104387649917. The next prime is 104387649943. The reversal of 104387649937 is 739946783401.

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 54647945361 + 49739704576 = 233769^2 + 223024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104387649937 is a prime.

It is a super-2 number, since 2×104387649937² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104387649917) 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, 2392864 + ... + 2436097.

It is an arithmetic number, because the mean of its divisors is an integer number (26098125129).

Almost surely, 2^104387649937 is an apocalyptic number.

It is an amenable number.

104387649937 is a deficient number, since it is larger than the sum of its proper divisors (4850579).

104387649937 is an equidigital number, since it uses as much as digits as its factorization.

104387649937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850578.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 104387649937 in words is "one hundred four billion, three hundred eighty-seven million, six hundred forty-nine thousand, nine hundred thirty-seven".