104465257643 has 4 divisors (see below), whose sum is σ = 105542219160. Its totient is φ = 103388296128.

The previous prime is 104465257639. The next prime is 104465257681. The reversal of 104465257643 is 346752564401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346752564401 = 156361 ⋅2217641.

It is a cyclic number.

It is not a de Polignac number, because 104465257643 - 2² = 104465257639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104465257343) 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, 538480613 + ... + 538480806.

It is an arithmetic number, because the mean of its divisors is an integer number (26385554790).

Almost surely, 2^104465257643 is an apocalyptic number.

104465257643 is a deficient number, since it is larger than the sum of its proper divisors (1076961517).

104465257643 is an equidigital number, since it uses as much as digits as its factorization.

104465257643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076961516.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 104465257643 in words is "one hundred four billion, four hundred sixty-five million, two hundred fifty-seven thousand, six hundred forty-three".