83251473866 has 16 divisors (see below), whose sum is σ = 136824582240. Its totient is φ = 37676329680.

The previous prime is 83251473863. The next prime is 83251473869. The reversal of 83251473866 is 66837415238.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83251473863) and next prime (83251473869).

It is a super-2 number, since 2×83251473866² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83251473863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8257316 + ... + 8267391.

It is an arithmetic number, because the mean of its divisors is an integer number (8551536390).

Almost surely, 2^83251473866 is an apocalyptic number.

83251473866 is a deficient number, since it is larger than the sum of its proper divisors (53573108374).

83251473866 is a wasteful number, since it uses less digits than its factorization.

83251473866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16524949.

The product of its digits is 5806080, while the sum is 53.

The spelling of 83251473866 in words is "eighty-three billion, two hundred fifty-one million, four hundred seventy-three thousand, eight hundred sixty-six".