77531441803 has 8 divisors (see below), whose sum is σ = 78075774000. Its totient is φ = 76987429728.

The previous prime is 77531441683. The next prime is 77531441809. The reversal of 77531441803 is 30814413577.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77531441803 is a prime.

It is a super-2 number, since 2×77531441803² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77531441803.

It is not an unprimeable number, because it can be changed into a prime (77531441809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416833 + ... + 573421.

It is an arithmetic number, because the mean of its divisors is an integer number (9759471750).

Almost surely, 2^77531441803 is an apocalyptic number.

77531441803 is a deficient number, since it is larger than the sum of its proper divisors (544332197).

77531441803 is a wasteful number, since it uses less digits than its factorization.

77531441803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160061.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 77531441803 in words is "seventy-seven billion, five hundred thirty-one million, four hundred forty-one thousand, eight hundred three".