71848633505 has 32 divisors (see below), whose sum is σ = 97121783808. Its totient is φ = 50551646400.

The previous prime is 71848633501. The next prime is 71848633529. The reversal of 71848633505 is 50533684817.

It is not a de Polignac number, because 71848633505 - 2² = 71848633501 is a prime.

It is a super-2 number, since 2×71848633505² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71848633501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8157434 + ... + 8166236.

It is an arithmetic number, because the mean of its divisors is an integer number (3035055744).

Almost surely, 2^71848633505 is an apocalyptic number.

It is an amenable number.

71848633505 is a deficient number, since it is larger than the sum of its proper divisors (25273150303).

71848633505 is a wasteful number, since it uses less digits than its factorization.

71848633505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13637.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 71848633505 in words is "seventy-one billion, eight hundred forty-eight million, six hundred thirty-three thousand, five hundred five".