73677681551 has 4 divisors (see below), whose sum is σ = 73731580272. Its totient is φ = 73623782832.

The previous prime is 73677681527. The next prime is 73677681559. The reversal of 73677681551 is 15518677637.

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

It is a cyclic number.

It is not a de Polignac number, because 73677681551 - 2⁶ = 73677681487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73677681559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26947310 + ... + 26950043.

It is an arithmetic number, because the mean of its divisors is an integer number (18432895068).

Almost surely, 2^73677681551 is an apocalyptic number.

73677681551 is a deficient number, since it is larger than the sum of its proper divisors (53898721).

73677681551 is a wasteful number, since it uses less digits than its factorization.

73677681551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53898720.

The product of its digits is 7408800, while the sum is 56.

The spelling of 73677681551 in words is "seventy-three billion, six hundred seventy-seven million, six hundred eighty-one thousand, five hundred fifty-one".