77073434370 has 24 divisors (see below), whose sum is σ = 200390929596. Its totient is φ = 20552915808.

The previous prime is 77073434369. The next prime is 77073434387. The reversal of 77073434370 is 7343437077.

It can be written as a sum of positive squares in 2 ways, for example, as 73193514849 + 3879919521 = 270543^2 + 62289^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 428185657 + ... + 428185836.

Almost surely, 2^77073434370 is an apocalyptic number.

77073434370 is an abundant number, since it is smaller than the sum of its proper divisors (123317495226).

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

77073434370 is a wasteful number, since it uses less digits than its factorization.

77073434370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856371506 (or 856371503 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 45.

The spelling of 77073434370 in words is "seventy-seven billion, seventy-three million, four hundred thirty-four thousand, three hundred seventy".