1244087163951 has 16 divisors (see below), whose sum is σ = 1667560919040. Its totient is φ = 825002912480.

The previous prime is 1244087163937. The next prime is 1244087163983. The reversal of 1244087163951 is 1593617804421.

It is a cyclic number.

It is not a de Polignac number, because 1244087163951 - 2²¹ = 1244085066799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244087163894 and 1244087163903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244087163251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12426070 + ... + 12525788.

It is an arithmetic number, because the mean of its divisors is an integer number (104222557440).

It is a 1-persistent number, because it is pandigital, but 2⋅1244087163951 = 2488174327902 is not.

Almost surely, 2^{1244087163951} is an apocalyptic number.

1244087163951 is a deficient number, since it is larger than the sum of its proper divisors (423473755089).

1244087163951 is a wasteful number, since it uses less digits than its factorization.

1244087163951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121686.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 1244087163951 in words is "one trillion, two hundred forty-four billion, eighty-seven million, one hundred sixty-three thousand, nine hundred fifty-one".