71503928954 has 8 divisors (see below), whose sum is σ = 107414323668. Its totient is φ = 35699154400.

The previous prime is 71503928953. The next prime is 71503928959. The reversal of 71503928954 is 45982930517.

It can be written as a sum of positive squares in 2 ways, for example, as 53095680625 + 18408248329 = 230425^2 + 135677^2 .

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

It is a super-2 number, since 2×71503928954² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71503928896 and 71503928905.

It is not an unprimeable number, because it can be changed into a prime (71503928953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26403347 + ... + 26406054.

Almost surely, 2^71503928954 is an apocalyptic number.

71503928954 is a deficient number, since it is larger than the sum of its proper divisors (35910394714).

71503928954 is a wasteful number, since it uses less digits than its factorization.

71503928954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52810080.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 71503928954 in words is "seventy-one billion, five hundred three million, nine hundred twenty-eight thousand, nine hundred fifty-four".