3908802136801 has 4 divisors (see below), whose sum is σ = 3908807523604. Its totient is φ = 3908796750000.

The previous prime is 3908802136777. The next prime is 3908802136843. The reversal of 3908802136801 is 1086312088093.

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 1237133430225 + 2671668706576 = 1112265^2 + 1634524^2 .

It is a cyclic number.

It is not a de Polignac number, because 3908802136801 - 2¹⁷ = 3908802005729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3908802136901) 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, 1396950 + ... + 3125551.

It is an arithmetic number, because the mean of its divisors is an integer number (977201880901).

Almost surely, 2^{3908802136801} is an apocalyptic number.

It is an amenable number.

3908802136801 is a deficient number, since it is larger than the sum of its proper divisors (5386803).

3908802136801 is an equidigital number, since it uses as much as digits as its factorization.

3908802136801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386802.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 3908802136801 in words is "three trillion, nine hundred eight billion, eight hundred two million, one hundred thirty-six thousand, eight hundred one".