38481099557 has 4 divisors (see below), whose sum is σ = 38483100396. Its totient is φ = 38479098720.

The previous prime is 38481099541. The next prime is 38481099617. The reversal of 38481099557 is 75599018483.

It is a Cunningham number, because it is equal to 196166²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75599018483 = 60761 ⋅1244203.

It can be written as a sum of positive squares in 2 ways, for example, as 37692669316 + 788430241 = 194146^2 + 28079^2 .

It is a cyclic number.

It is not a de Polignac number, because 38481099557 - 2⁴ = 38481099541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38481099496 and 38481099505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38481099157) 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, 971288 + ... + 1010129.

It is an arithmetic number, because the mean of its divisors is an integer number (9620775099).

Almost surely, 2^38481099557 is an apocalyptic number.

It is an amenable number.

38481099557 is a deficient number, since it is larger than the sum of its proper divisors (2000839).

38481099557 is a wasteful number, since it uses less digits than its factorization.

38481099557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000838.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 38481099557 in words is "thirty-eight billion, four hundred eighty-one million, ninety-nine thousand, five hundred fifty-seven".