1576713376421 has 2 divisors, whose sum is σ = 1576713376422. Its totient is φ = 1576713376420.

The previous prime is 1576713376361. The next prime is 1576713376453. The reversal of 1576713376421 is 1246733176751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 897472022500 + 679241353921 = 947350^2 + 824161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1576713376421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1576713376471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788356688210 + 788356688211.

It is an arithmetic number, because the mean of its divisors is an integer number (788356688211).

Almost surely, 2^{1576713376421} is an apocalyptic number.

It is an amenable number.

1576713376421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1576713376421 is an equidigital number, since it uses as much as digits as its factorization.

1576713376421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 53.

The spelling of 1576713376421 in words is "one trillion, five hundred seventy-six billion, seven hundred thirteen million, three hundred seventy-six thousand, four hundred twenty-one".