1430428876505 has 8 divisors (see below), whose sum is σ = 1748901721032. Its totient is φ = 1122751721728.

The previous prime is 1430428876501. The next prime is 1430428876637. The reversal of 1430428876505 is 5056788240341.

It can be written as a sum of positive squares in 4 ways, for example, as 174386419216 + 1256042457289 = 417596^2 + 1120733^2 .

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 1430428876505 - 2² = 1430428876501 is a prime.

It is a super-2 number, since 2×1430428876505² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1430428876501) 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, 2698922144 + ... + 2698922673.

It is an arithmetic number, because the mean of its divisors is an integer number (218612715129).

Almost surely, 2^{1430428876505} is an apocalyptic number.

It is an amenable number.

1430428876505 is a deficient number, since it is larger than the sum of its proper divisors (318472844527).

1430428876505 is an equidigital number, since it uses as much as digits as its factorization.

1430428876505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397844875.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 1430428876505 in words is "one trillion, four hundred thirty billion, four hundred twenty-eight million, eight hundred seventy-six thousand, five hundred five".