71672266752 has 116 divisors (see below), whose sum is σ = 193273527960. Its totient is φ = 23622320128.

The previous prime is 71672266751. The next prime is 71672266763. The reversal of 71672266752 is 25766227617.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71672266695 and 71672266704.

It is not an unprimeable number, because it can be changed into a prime (71672266751) 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, 805306324 + ... + 805306412.

Almost surely, 2^71672266752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71672266752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96636763980).

71672266752 is an abundant number, since it is smaller than the sum of its proper divisors (121601261208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71672266752 is an frugal number, since it uses more digits than its factorization.

71672266752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 94 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 51.

The spelling of 71672266752 in words is "seventy-one billion, six hundred seventy-two million, two hundred sixty-six thousand, seven hundred fifty-two".