381154945287 has 16 divisors (see below), whose sum is σ = 511575966720. Its totient is φ = 252421696800.

The previous prime is 381154945253. The next prime is 381154945307. The reversal of 381154945287 is 782549451183.

It is not a de Polignac number, because 381154945287 - 2¹² = 381154941191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381154945387) 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, 109414 + ... + 879932.

It is an arithmetic number, because the mean of its divisors is an integer number (31973497920).

Almost surely, 2^381154945287 is an apocalyptic number.

381154945287 is a deficient number, since it is larger than the sum of its proper divisors (130421021433).

381154945287 is a wasteful number, since it uses less digits than its factorization.

381154945287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771614.

The product of its digits is 9676800, while the sum is 57.

The spelling of 381154945287 in words is "three hundred eighty-one billion, one hundred fifty-four million, nine hundred forty-five thousand, two hundred eighty-seven".