72214303451 has 16 divisors (see below), whose sum is σ = 76649076288. Its totient is φ = 67800499200.

The previous prime is 72214303439. The next prime is 72214303463. The reversal of 72214303451 is 15430341227.

It is an interprime number because it is at equal distance from previous prime (72214303439) and next prime (72214303463).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72214303451 is a prime.

It is a super-2 number, since 2×72214303451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72214303471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17386391 + ... + 17390543.

It is an arithmetic number, because the mean of its divisors is an integer number (4790567268).

Almost surely, 2^72214303451 is an apocalyptic number.

72214303451 is a deficient number, since it is larger than the sum of its proper divisors (4434772837).

72214303451 is a wasteful number, since it uses less digits than its factorization.

72214303451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 72214303451 its reverse (15430341227), we get a palindrome (87644644678).

The spelling of 72214303451 in words is "seventy-two billion, two hundred fourteen million, three hundred three thousand, four hundred fifty-one".