71885020552 has 16 divisors (see below), whose sum is σ = 137918935440. Its totient is φ = 35106637776.

The previous prime is 71885020547. The next prime is 71885020553. The reversal of 71885020552 is 25502058817.

It is a super-2 number, since 2×71885020552² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 71885020499 and 71885020508.

It is not an unprimeable number, because it can be changed into a prime (71885020553) 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, 104483698 + ... + 104484385.

It is an arithmetic number, because the mean of its divisors is an integer number (8619933465).

Almost surely, 2^71885020552 is an apocalyptic number.

It is an amenable number.

71885020552 is a deficient number, since it is larger than the sum of its proper divisors (66033914888).

71885020552 is a wasteful number, since it uses less digits than its factorization.

71885020552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208968132 (or 208968128 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 43.

The spelling of 71885020552 in words is "seventy-one billion, eight hundred eighty-five million, twenty thousand, five hundred fifty-two".