72946640824426 has 32 divisors (see below), whose sum is σ = 110312393342976. Its totient is φ = 36176137374000.

The previous prime is 72946640824319. The next prime is 72946640824427. The reversal of 72946640824426 is 62442804664927.

It is a super-3 number, since 3×72946640824426³ (a number of 43 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 7734767931 + ... + 7734777361.

It is an arithmetic number, because the mean of its divisors is an integer number (3447262291968).

Almost surely, 2^{72946640824426} is an apocalyptic number.

72946640824426 is a deficient number, since it is larger than the sum of its proper divisors (37365752518550).

72946640824426 is a wasteful number, since it uses less digits than its factorization.

72946640824426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21738.

The product of its (nonzero) digits is 222953472, while the sum is 64.

The spelling of 72946640824426 in words is "seventy-two trillion, nine hundred forty-six billion, six hundred forty million, eight hundred twenty-four thousand, four hundred twenty-six".