77803028031 has 8 divisors (see below), whose sum is σ = 103779567360. Its totient is φ = 51847587032.

The previous prime is 77803028011. The next prime is 77803028041. The reversal of 77803028031 is 13082030877.

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

It is a cyclic number.

It is not a de Polignac number, because 77803028031 - 2⁵ = 77803027999 is a prime.

It is a super-2 number, since 2×77803028031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77803028011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5265975 + ... + 5280728.

It is an arithmetic number, because the mean of its divisors is an integer number (12972445920).

Almost surely, 2^77803028031 is an apocalyptic number.

77803028031 is a deficient number, since it is larger than the sum of its proper divisors (25976539329).

77803028031 is a wasteful number, since it uses less digits than its factorization.

77803028031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10549165.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 77803028031 in words is "seventy-seven billion, eight hundred three million, twenty-eight thousand, thirty-one".