71538073034 has 4 divisors (see below), whose sum is σ = 107307109554. Its totient is φ = 35769036516.

The previous prime is 71538072989. The next prime is 71538073043. The reversal of 71538073034 is 43037083517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43037083517 = 3469 ⋅12406193.

It can be written as a sum of positive squares in only one way, i.e., 53869017409 + 17669055625 = 232097^2 + 132925^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71538072982 and 71538073000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17884518257 + ... + 17884518260.

Almost surely, 2^71538073034 is an apocalyptic number.

71538073034 is a deficient number, since it is larger than the sum of its proper divisors (35769036520).

71538073034 is a wasteful number, since it uses less digits than its factorization.

71538073034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35769036519.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 71538073034 in words is "seventy-one billion, five hundred thirty-eight million, seventy-three thousand, thirty-four".