381450737401 has 4 divisors (see below), whose sum is σ = 381833336932. Its totient is φ = 381068137872.

The previous prime is 381450737377. The next prime is 381450737429. The reversal of 381450737401 is 104737054183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104737054183 = 14243 ⋅7353581.

It can be written as a sum of positive squares in 2 ways, for example, as 338868351376 + 42582386025 = 582124^2 + 206355^2 .

It is a cyclic number.

It is not a de Polignac number, because 381450737401 - 2²⁵ = 381417182969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381450737431) 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, 191298270 + ... + 191300263.

It is an arithmetic number, because the mean of its divisors is an integer number (95458334233).

Almost surely, 2^381450737401 is an apocalyptic number.

It is an amenable number.

381450737401 is a deficient number, since it is larger than the sum of its proper divisors (382599531).

381450737401 is an equidigital number, since it uses as much as digits as its factorization.

381450737401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382599530.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 381450737401 in words is "three hundred eighty-one billion, four hundred fifty million, seven hundred thirty-seven thousand, four hundred one".