1280531150005 has 16 divisors (see below), whose sum is σ = 1627064858880. Its totient is φ = 964142678272.

The previous prime is 1280531149973. The next prime is 1280531150009. The reversal of 1280531150005 is 5000511350821.

It is a cyclic number.

It is not a de Polignac number, because 1280531150005 - 2⁵ = 1280531149973 is a prime.

It is a super-2 number, since 2×1280531150005² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280531150009) 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, 4250472 + ... + 4541758.

It is an arithmetic number, because the mean of its divisors is an integer number (101691553680).

Almost surely, 2^{1280531150005} is an apocalyptic number.

It is an amenable number.

1280531150005 is a deficient number, since it is larger than the sum of its proper divisors (346533708875).

1280531150005 is a wasteful number, since it uses less digits than its factorization.

1280531150005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343028.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 1280531150005 in words is "one trillion, two hundred eighty billion, five hundred thirty-one million, one hundred fifty thousand, five".