67922672472 has 80 divisors (see below), whose sum is σ = 190387430640. Its totient is φ = 22624104384.

The previous prime is 67922672471. The next prime is 67922672501. The reversal of 67922672472 is 27427622976.

67922672472 is a `hidden beast` number, since 67 + 92 + 26 + 7 + 2 + 472 = 666.

67922672472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67922672472² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67922672471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 851533 + ... + 927875.

It is an arithmetic number, because the mean of its divisors is an integer number (2379842883).

Almost surely, 2^67922672472 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 67922672472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95193715320).

67922672472 is an abundant number, since it is smaller than the sum of its proper divisors (122464758168).

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

67922672472 is a wasteful number, since it uses less digits than its factorization.

67922672472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77734 (or 77721 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 67922672472 in words is "sixty-seven billion, nine hundred twenty-two million, six hundred seventy-two thousand, four hundred seventy-two".