1240959049851 has 8 divisors (see below), whose sum is σ = 1654620022080. Its totient is φ = 827302055432.

The previous prime is 1240959049843. The next prime is 1240959049861. The reversal of 1240959049851 is 1589409590421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240959049851 - 2³ = 1240959049843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240959049791 and 1240959049800.

It is not an unprimeable number, because it can be changed into a prime (1240959049861) 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, 168525 + ... + 1584398.

It is an arithmetic number, because the mean of its divisors is an integer number (206827502760).

Almost surely, 2^{1240959049851} is an apocalyptic number.

1240959049851 is a deficient number, since it is larger than the sum of its proper divisors (413660972229).

1240959049851 is a wasteful number, since it uses less digits than its factorization.

1240959049851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988905.

The product of its (nonzero) digits is 4665600, while the sum is 57.

The spelling of 1240959049851 in words is "one trillion, two hundred forty billion, nine hundred fifty-nine million, forty-nine thousand, eight hundred fifty-one".