381105261451 has 8 divisors (see below), whose sum is σ = 390313634480. Its totient is φ = 371912591232.

The previous prime is 381105261409. The next prime is 381105261487. The reversal of 381105261451 is 154162501183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381105261451 - 2⁷ = 381105261323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381105261451.

It is not an unprimeable number, because it can be changed into a prime (381105261491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3876570 + ... + 3973663.

It is an arithmetic number, because the mean of its divisors is an integer number (48789204310).

Almost surely, 2^381105261451 is an apocalyptic number.

381105261451 is a deficient number, since it is larger than the sum of its proper divisors (9208373029).

381105261451 is a wasteful number, since it uses less digits than its factorization.

381105261451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7851405.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 381105261451 in words is "three hundred eighty-one billion, one hundred five million, two hundred sixty-one thousand, four hundred fifty-one".