381783606951 has 16 divisors (see below), whose sum is σ = 514266019200. Its totient is φ = 251916094368.

The previous prime is 381783606947. The next prime is 381783606973. The reversal of 381783606951 is 159606387183.

It is not a de Polignac number, because 381783606951 - 2² = 381783606947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381783606891 and 381783606900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381783406951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180241 + ... + 892218.

It is an arithmetic number, because the mean of its divisors is an integer number (32141626200).

Almost surely, 2^381783606951 is an apocalyptic number.

381783606951 is a deficient number, since it is larger than the sum of its proper divisors (132482412249).

381783606951 is a wasteful number, since it uses less digits than its factorization.

381783606951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073678.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 381783606951 in words is "three hundred eighty-one billion, seven hundred eighty-three million, six hundred six thousand, nine hundred fifty-one".