881751452491 has 16 divisors (see below), whose sum is σ = 1085256761344. Its totient is φ = 697633941024.

The previous prime is 881751452473. The next prime is 881751452497. The reversal of 881751452491 is 194254157188.

It is a cyclic number.

It is not a de Polignac number, because 881751452491 - 2¹⁷ = 881751321419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (881751452497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5701006 + ... + 5853628.

It is an arithmetic number, because the mean of its divisors is an integer number (67828547584).

Almost surely, 2^881751452491 is an apocalyptic number.

881751452491 is a deficient number, since it is larger than the sum of its proper divisors (203505308853).

881751452491 is a wasteful number, since it uses less digits than its factorization.

881751452491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216130.

The product of its digits is 3225600, while the sum is 55.

The spelling of 881751452491 in words is "eight hundred eighty-one billion, seven hundred fifty-one million, four hundred fifty-two thousand, four hundred ninety-one".