72645322444082 has 8 divisors (see below), whose sum is σ = 108968178382956. Its totient is φ = 36322596316432.

The previous prime is 72645322444081. The next prime is 72645322444091. The reversal of 72645322444082 is 28044422354627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68859110863321 + 3786211580761 = 8298139^2 + 1945819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72645322444081) 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, 31041473 + ... + 33299604.

Almost surely, 2^{72645322444082} is an apocalyptic number.

72645322444082 is a deficient number, since it is larger than the sum of its proper divisors (36322855938874).

72645322444082 is a wasteful number, since it uses less digits than its factorization.

72645322444082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64905612.

The product of its (nonzero) digits is 20643840, while the sum is 53.

The spelling of 72645322444082 in words is "seventy-two trillion, six hundred forty-five billion, three hundred twenty-two million, four hundred forty-four thousand, eighty-two".