34815780638 has 32 divisors (see below), whose sum is σ = 54473825280. Its totient is φ = 16670422080.

The previous prime is 34815780577. The next prime is 34815780673. The reversal of 34815780638 is 83608751843.

34815780638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 34815780638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2690981 + ... + 2703887.

It is an arithmetic number, because the mean of its divisors is an integer number (1702307040).

Almost surely, 2^34815780638 is an apocalyptic number.

34815780638 is a deficient number, since it is larger than the sum of its proper divisors (19658044642).

34815780638 is a wasteful number, since it uses less digits than its factorization.

34815780638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13392.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 34815780638 in words is "thirty-four billion, eight hundred fifteen million, seven hundred eighty thousand, six hundred thirty-eight".