72453347612 has 6 divisors (see below), whose sum is σ = 126793358328. Its totient is φ = 36226673804.

The previous prime is 72453347611. The next prime is 72453347623. The reversal of 72453347612 is 21674335427.

It is a super-2 number, since 2×72453347612² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72453347611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056668448 + ... + 9056668455.

It is an arithmetic number, because the mean of its divisors is an integer number (21132226388).

Almost surely, 2^72453347612 is an apocalyptic number.

It is an amenable number.

72453347612 is a deficient number, since it is larger than the sum of its proper divisors (54340010716).

72453347612 is a wasteful number, since it uses less digits than its factorization.

72453347612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113336907 (or 18113336905 counting only the distinct ones).

The product of its digits is 846720, while the sum is 44.

The spelling of 72453347612 in words is "seventy-two billion, four hundred fifty-three million, three hundred forty-seven thousand, six hundred twelve".