381795156651 has 16 divisors (see below), whose sum is σ = 535870823040. Its totient is φ = 241125696000.

The previous prime is 381795156649. The next prime is 381795156667. The reversal of 381795156651 is 156651597183.

It is not a de Polignac number, because 381795156651 - 2¹ = 381795156649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 381795156591 and 381795156600.

It is not an unprimeable number, because it can be changed into a prime (381795156601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1922776 + ... + 2112026.

It is an arithmetic number, because the mean of its divisors is an integer number (33491926440).

Almost surely, 2^381795156651 is an apocalyptic number.

381795156651 is a deficient number, since it is larger than the sum of its proper divisors (154075666389).

381795156651 is a wasteful number, since it uses less digits than its factorization.

381795156651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224666.

The product of its digits is 6804000, while the sum is 57.

The spelling of 381795156651 in words is "three hundred eighty-one billion, seven hundred ninety-five million, one hundred fifty-six thousand, six hundred fifty-one".