1371473434721 has 16 divisors (see below), whose sum is σ = 1513004494848. Its totient is φ = 1235416795200.

The previous prime is 1371473434703. The next prime is 1371473434729. The reversal of 1371473434721 is 1274343741731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1371473434721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1371473434729) 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, 6708245 + ... + 6909666.

It is an arithmetic number, because the mean of its divisors is an integer number (94562780928).

Almost surely, 2^{1371473434721} is an apocalyptic number.

It is an amenable number.

1371473434721 is a deficient number, since it is larger than the sum of its proper divisors (141531060127).

1371473434721 is a wasteful number, since it uses less digits than its factorization.

1371473434721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13618112.

The product of its digits is 1185408, while the sum is 47.

The spelling of 1371473434721 in words is "one trillion, three hundred seventy-one billion, four hundred seventy-three million, four hundred thirty-four thousand, seven hundred twenty-one".