34064643640 has 16 divisors (see below), whose sum is σ = 76645448280. Its totient is φ = 13625857440.

The previous prime is 34064643617. The next prime is 34064643643. The reversal of 34064643640 is 4634646043.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 851616091 = 34064643640 / (3 + 4 + 0 + 6 + 4 + 6 + 4 + 3 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 34064643593 and 34064643602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34064643643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425808006 + ... + 425808085.

Almost surely, 2^34064643640 is an apocalyptic number.

It is an amenable number.

34064643640 is an abundant number, since it is smaller than the sum of its proper divisors (42580804640).

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

34064643640 is a wasteful number, since it uses less digits than its factorization.

34064643640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851616102 (or 851616098 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 34064643640 in words is "thirty-four billion, sixty-four million, six hundred forty-three thousand, six hundred forty".