77354322540 has 48 divisors (see below), whose sum is σ = 236282296320. Its totient is φ = 18752562880.

The previous prime is 77354322491. The next prime is 77354322547. The reversal of 77354322540 is 4522345377.

It is a junction number, because it is equal to n+sod(n) for n = 77354322492 and 77354322501.

It is not an unprimeable number, because it can be changed into a prime (77354322547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58601100 + ... + 58602419.

It is an arithmetic number, because the mean of its divisors is an integer number (4922547840).

Almost surely, 2^77354322540 is an apocalyptic number.

It is an amenable number.

77354322540 is an abundant number, since it is smaller than the sum of its proper divisors (158927973780).

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

77354322540 is a wasteful number, since it uses less digits than its factorization.

77354322540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117203542 (or 117203540 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 42.

The spelling of 77354322540 in words is "seventy-seven billion, three hundred fifty-four million, three hundred twenty-two thousand, five hundred forty".