104638941553 has 2 divisors, whose sum is σ = 104638941554. Its totient is φ = 104638941552.

The previous prime is 104638941541. The next prime is 104638941557. The reversal of 104638941553 is 355149836401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55518198129 + 49120743424 = 235623^2 + 221632^2 .

It is a cyclic number.

It is not a de Polignac number, because 104638941553 - 2¹⁷ = 104638810481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104638941497 and 104638941506.

It is not a weakly prime, because it can be changed into another prime (104638941557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52319470776 + 52319470777.

It is an arithmetic number, because the mean of its divisors is an integer number (52319470777).

Almost surely, 2^104638941553 is an apocalyptic number.

It is an amenable number.

104638941553 is a deficient number, since it is larger than the sum of its proper divisors (1).

104638941553 is an equidigital number, since it uses as much as digits as its factorization.

104638941553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 104638941553 in words is "one hundred four billion, six hundred thirty-eight million, nine hundred forty-one thousand, five hundred fifty-three".