72230670370772 has 24 divisors (see below), whose sum is σ = 131911074347136. Its totient is φ = 34542067922208.

The previous prime is 72230670370751. The next prime is 72230670370777. The reversal of 72230670370772 is 27707307603227.

It is a super-2 number, since 2×72230670370772² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72230670370777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33439103 + ... + 35533574.

It is an arithmetic number, because the mean of its divisors is an integer number (5496294764464).

Almost surely, 2^{72230670370772} is an apocalyptic number.

It is an amenable number.

72230670370772 is a deficient number, since it is larger than the sum of its proper divisors (59680403976364).

72230670370772 is a wasteful number, since it uses less digits than its factorization.

72230670370772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68984087 (or 68984085 counting only the distinct ones).

The product of its (nonzero) digits is 7260624, while the sum is 53.

Adding to 72230670370772 its reverse (27707307603227), we get a palindrome (99937977973999).

The spelling of 72230670370772 in words is "seventy-two trillion, two hundred thirty billion, six hundred seventy million, three hundred seventy thousand, seven hundred seventy-two".