49283666840 has 32 divisors (see below), whose sum is σ = 110895546960. Its totient is φ = 19712169600.

The previous prime is 49283666827. The next prime is 49283666899. The reversal of 49283666840 is 4866638294.

It is a happy number.

It is a super-2 number, since 2×49283666840² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 780035 + ... + 840845.

Almost surely, 2^49283666840 is an apocalyptic number.

49283666840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49283666840 is an abundant number, since it is smaller than the sum of its proper divisors (61611880120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49283666840 is a wasteful number, since it uses less digits than its factorization.

49283666840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81083 (or 81079 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 56.

The spelling of 49283666840 in words is "forty-nine billion, two hundred eighty-three million, six hundred sixty-six thousand, eight hundred forty".