72210330463642 has 16 divisors (see below), whose sum is σ = 128057728901760. Its totient is φ = 29880136743408.

The previous prime is 72210330463549. The next prime is 72210330463651. The reversal of 72210330463642 is 24636403301227.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88928977998 + ... + 88928978809.

It is an arithmetic number, because the mean of its divisors is an integer number (8003608056360).

Almost surely, 2^{72210330463642} is an apocalyptic number.

72210330463642 is a deficient number, since it is larger than the sum of its proper divisors (55847398438118).

72210330463642 is a wasteful number, since it uses less digits than its factorization.

72210330463642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177857956845.

The product of its (nonzero) digits is 870912, while the sum is 43.

Adding to 72210330463642 its reverse (24636403301227), we get a palindrome (96846733764869).

The spelling of 72210330463642 in words is "seventy-two trillion, two hundred ten billion, three hundred thirty million, four hundred sixty-three thousand, six hundred forty-two".