77703370734 has 64 divisors (see below), whose sum is σ = 172787281920. Its totient is φ = 23097671520.

The previous prime is 77703370727. The next prime is 77703370741. The reversal of 77703370734 is 43707330777.

It is an interprime number because it is at equal distance from previous prime (77703370727) and next prime (77703370741).

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 1020097 + ... + 1093619.

It is an arithmetic number, because the mean of its divisors is an integer number (2699801280).

Almost surely, 2^77703370734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77703370734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86393640960).

77703370734 is an abundant number, since it is smaller than the sum of its proper divisors (95083911186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77703370734 is a wasteful number, since it uses less digits than its factorization.

77703370734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73845.

The product of its (nonzero) digits is 1815156, while the sum is 48.

The spelling of 77703370734 in words is "seventy-seven billion, seven hundred three million, three hundred seventy thousand, seven hundred thirty-four".