1287471404623 has 16 divisors (see below), whose sum is σ = 1364778455040. Its totient is φ = 1212693271200.

The previous prime is 1287471404591. The next prime is 1287471404803. The reversal of 1287471404623 is 3264041747821.

It is a cyclic number.

It is not a de Polignac number, because 1287471404623 - 2⁵ = 1287471404591 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 (1287471494623) 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, 2177293 + ... + 2704726.

It is an arithmetic number, because the mean of its divisors is an integer number (85298653440).

Almost surely, 2^{1287471404623} is an apocalyptic number.

1287471404623 is a deficient number, since it is larger than the sum of its proper divisors (77307050417).

1287471404623 is a wasteful number, since it uses less digits than its factorization.

1287471404623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882278.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 1287471404623 in words is "one trillion, two hundred eighty-seven billion, four hundred seventy-one million, four hundred four thousand, six hundred twenty-three".