77628125603 has 32 divisors (see below), whose sum is σ = 91537319808. Its totient is φ = 64463616000.

The previous prime is 77628125591. The next prime is 77628125629. The reversal of 77628125603 is 30652182677.

It is not a de Polignac number, because 77628125603 - 2⁸ = 77628125347 is a prime.

It is a super-2 number, since 2×77628125603² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77628125683) 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 31 ways as a sum of consecutive naturals, for example, 8491451 + ... + 8500587.

It is an arithmetic number, because the mean of its divisors is an integer number (2860541244).

Almost surely, 2^77628125603 is an apocalyptic number.

77628125603 is a deficient number, since it is larger than the sum of its proper divisors (13909194205).

77628125603 is a wasteful number, since it uses less digits than its factorization.

77628125603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9503.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 77628125603 in words is "seventy-seven billion, six hundred twenty-eight million, one hundred twenty-five thousand, six hundred three".