1249656804953 has 8 divisors (see below), whose sum is σ = 1328452259520. Its totient is φ = 1172163754800.

The previous prime is 1249656804943. The next prime is 1249656804959. The reversal of 1249656804953 is 3594086569421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1249656804953 - 2³⁶ = 1180937328217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1249656804959) 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, 325599125 + ... + 325602962.

It is an arithmetic number, because the mean of its divisors is an integer number (166056532440).

Almost surely, 2^{1249656804953} is an apocalyptic number.

It is an amenable number.

1249656804953 is a deficient number, since it is larger than the sum of its proper divisors (78795454567).

1249656804953 is a wasteful number, since it uses less digits than its factorization.

1249656804953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651202207.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 1249656804953 in words is "one trillion, two hundred forty-nine billion, six hundred fifty-six million, eight hundred four thousand, nine hundred fifty-three".