249873162650 has 48 divisors (see below), whose sum is σ = 493191201600. Its totient is φ = 93983218560.

The previous prime is 249873162641. The next prime is 249873162667. The reversal of 249873162650 is 56261378942.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 249873162592 and 249873162601.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1773515 + ... + 1909214.

It is an arithmetic number, because the mean of its divisors is an integer number (10274816700).

It is a 1-persistent number, because it is pandigital, but 2⋅249873162650 = 499746325300 is not.

Almost surely, 2^249873162650 is an apocalyptic number.

249873162650 is a deficient number, since it is larger than the sum of its proper divisors (243318038950).

249873162650 is a wasteful number, since it uses less digits than its factorization.

249873162650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682823 (or 3682818 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 249873162650 in words is "two hundred forty-nine billion, eight hundred seventy-three million, one hundred sixty-two thousand, six hundred fifty".