71478353345 has 24 divisors (see below), whose sum is σ = 103218575400. Its totient is φ = 47323594752.

The previous prime is 71478353327. The next prime is 71478353351. The reversal of 71478353345 is 54335387417.

It can be written as a sum of positive squares in 4 ways, for example, as 3786802369 + 67691550976 = 61537^2 + 260176^2 .

It is not a de Polignac number, because 71478353345 - 2¹⁴ = 71478336961 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71478353293 and 71478353302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5023040 + ... + 5037249.

It is an arithmetic number, because the mean of its divisors is an integer number (4300773975).

Almost surely, 2^71478353345 is an apocalyptic number.

It is an amenable number.

71478353345 is a deficient number, since it is larger than the sum of its proper divisors (31740222055).

71478353345 is a wasteful number, since it uses less digits than its factorization.

71478353345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060337 (or 10060330 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 50.

The spelling of 71478353345 in words is "seventy-one billion, four hundred seventy-eight million, three hundred fifty-three thousand, three hundred forty-five".