71562117007412 has 6 divisors (see below), whose sum is σ = 125233704762978. Its totient is φ = 35781058503704.

The previous prime is 71562117007399. The next prime is 71562117007429. The reversal of 71562117007412 is 21470071126517.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35956860931216 + 35605256076196 = 5996404^2 + 5967014^2 .

It is a super-2 number, since 2×71562117007412² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8945264625923 + ... + 8945264625930.

It is an arithmetic number, because the mean of its divisors is an integer number (20872284127163).

Almost surely, 2^{71562117007412} is an apocalyptic number.

It is an amenable number.

71562117007412 is a deficient number, since it is larger than the sum of its proper divisors (53671587755566).

71562117007412 is a wasteful number, since it uses less digits than its factorization.

71562117007412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17890529251857 (or 17890529251855 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 71562117007412 in words is "seventy-one trillion, five hundred sixty-two billion, one hundred seventeen million, seven thousand, four hundred twelve".