72946640824428 has 96 divisors (see below), whose sum is σ = 194884458055168. Its totient is φ = 20803325644800.

The previous prime is 72946640824427. The next prime is 72946640824507. The reversal of 72946640824428 is 82442804664927.

It is not an unprimeable number, because it can be changed into a prime (72946640824427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433268223 + ... + 433436553.

Almost surely, 2^{72946640824428} is an apocalyptic number.

It is an amenable number.

72946640824428 is an abundant number, since it is smaller than the sum of its proper divisors (121937817230740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72946640824428 is a wasteful number, since it uses less digits than its factorization.

72946640824428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177863 (or 177861 counting only the distinct ones).

The product of its (nonzero) digits is 297271296, while the sum is 66.

The spelling of 72946640824428 in words is "seventy-two trillion, nine hundred forty-six billion, six hundred forty million, eight hundred twenty-four thousand, four hundred twenty-eight".