3781533352801 has 4 divisors (see below), whose sum is σ = 3782179002052. Its totient is φ = 3780887703552.

The previous prime is 3781533352763. The next prime is 3781533352829. The reversal of 3781533352801 is 1082533351873.

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 3650182197025 + 131351155776 = 1910545^2 + 362424^2 .

It is a cyclic number.

It is not a de Polignac number, because 3781533352801 - 2¹³ = 3781533344609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3781533355801) 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, 322815840 + ... + 322827553.

It is an arithmetic number, because the mean of its divisors is an integer number (945544750513).

Almost surely, 2^{3781533352801} is an apocalyptic number.

It is an amenable number.

3781533352801 is a deficient number, since it is larger than the sum of its proper divisors (645649251).

3781533352801 is an equidigital number, since it uses as much as digits as its factorization.

3781533352801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645649250.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 3781533352801 in words is "three trillion, seven hundred eighty-one billion, five hundred thirty-three million, three hundred fifty-two thousand, eight hundred one".