1430001572873 has 4 divisors (see below), whose sum is σ = 1434570268308. Its totient is φ = 1425432877440.

The previous prime is 1430001572851. The next prime is 1430001572891. The reversal of 1430001572873 is 3782751000341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11072721529 + 1418928851344 = 105227^2 + 1191188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430001572873 - 2¹² = 1430001568777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1430001572873.

It is not an unprimeable number, because it can be changed into a prime (1430001574873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2284347248 + ... + 2284347873.

It is an arithmetic number, because the mean of its divisors is an integer number (358642567077).

Almost surely, 2^{1430001572873} is an apocalyptic number.

It is an amenable number.

1430001572873 is a deficient number, since it is larger than the sum of its proper divisors (4568695435).

1430001572873 is an equidigital number, since it uses as much as digits as its factorization.

1430001572873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568695434.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 1430001572873 in words is "one trillion, four hundred thirty billion, one million, five hundred seventy-two thousand, eight hundred seventy-three".