72876651976522 has 4 divisors (see below), whose sum is σ = 109314977964786. Its totient is φ = 36438325988260.

The previous prime is 72876651976511. The next prime is 72876651976543. The reversal of 72876651976522 is 22567915667827.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63841042823481 + 9035609153041 = 7990059^2 + 3005929^2 .

It is a super-2 number, since 2×72876651976522² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18219162994129 + ... + 18219162994132.

Almost surely, 2^{72876651976522} is an apocalyptic number.

72876651976522 is a deficient number, since it is larger than the sum of its proper divisors (36438325988264).

72876651976522 is a wasteful number, since it uses less digits than its factorization.

72876651976522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36438325988263.

The product of its digits is 1066867200, while the sum is 73.

The spelling of 72876651976522 in words is "seventy-two trillion, eight hundred seventy-six billion, six hundred fifty-one million, nine hundred seventy-six thousand, five hundred twenty-two".