12800154709 has 16 divisors (see below), whose sum is σ = 13820689152. Its totient is φ = 11809744128.

The previous prime is 12800154691. The next prime is 12800154737. The reversal of 12800154709 is 90745100821.

It is a cyclic number.

It is not a de Polignac number, because 12800154709 - 2⁵ = 12800154677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800154109) 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, 1168552 + ... + 1179454.

It is an arithmetic number, because the mean of its divisors is an integer number (863793072).

Almost surely, 2^12800154709 is an apocalyptic number.

It is an amenable number.

12800154709 is a deficient number, since it is larger than the sum of its proper divisors (1020534443).

12800154709 is a wasteful number, since it uses less digits than its factorization.

12800154709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276.

The product of its (nonzero) digits is 20160, while the sum is 37.

It can be divided in two parts, 128001 and 54709, that added together give a triangular number (182710 = T₆₀₄).

The spelling of 12800154709 in words is "twelve billion, eight hundred million, one hundred fifty-four thousand, seven hundred nine".