71146813954 has 8 divisors (see below), whose sum is σ = 106721373708. Its totient is φ = 35573022720.

The previous prime is 71146813939. The next prime is 71146813957. The reversal of 71146813954 is 45931864117.

It can be written as a sum of positive squares in 2 ways, for example, as 62461505929 + 8685308025 = 249923^2 + 93195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71146813954² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71146813898 and 71146813907.

It is not an unprimeable number, because it can be changed into a prime (71146813957) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 196674 + ... + 425410.

Almost surely, 2^71146813954 is an apocalyptic number.

71146813954 is a deficient number, since it is larger than the sum of its proper divisors (35574559754).

71146813954 is a wasteful number, since it uses less digits than its factorization.

71146813954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384260.

The product of its digits is 725760, while the sum is 49.

The spelling of 71146813954 in words is "seventy-one billion, one hundred forty-six million, eight hundred thirteen thousand, nine hundred fifty-four".