83914942491 has 16 divisors (see below), whose sum is σ = 124329510400. Its totient is φ = 55938310344.

The previous prime is 83914942487. The next prime is 83914942571. The reversal of 83914942491 is 19424941938.

83914942491 is a `hidden beast` number, since 8 + 3 + 9 + 149 + 4 + 2 + 491 = 666.

It is not a de Polignac number, because 83914942491 - 2² = 83914942487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83914942421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183810 + ... + 449016.

It is an arithmetic number, because the mean of its divisors is an integer number (7770594400).

Almost surely, 2^83914942491 is an apocalyptic number.

83914942491 is a deficient number, since it is larger than the sum of its proper divisors (40414567909).

83914942491 is a wasteful number, since it uses less digits than its factorization.

83914942491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276935 (or 276929 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 83914942491 in words is "eighty-three billion, nine hundred fourteen million, nine hundred forty-two thousand, four hundred ninety-one".